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Finding the Fourth Proportional to 17,507.81, 24,160.78 and 11,220.19

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Solution

The fourth proportional to 17,507.81, 24,160.78 and 11,220.19 is: 15,483.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,507.81 : 24,160.78 = 11,220.19 : x
  2. Step 2: Convert to fraction form
    17,507.81/24,160.78 = 11,220.19/x
  3. Step 3: Cross multiply
    17,507.81x = 24,160.78 × 11,220.19
  4. Step 4: Simplify right side
    17,507.81x = 271,088,495.77
  5. Step 5: Solve for x
    x = 271,088,495.77/17,507.81
  6. Step 6: Final answer
    x = 15,483.86

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Half scale
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Double scale
Find fourth proportional to 17,508.81, 24,162.16 and 11,221.19
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.