Home / 20,032.56-27,645.12-11,079.84

Finding the Fourth Proportional to 20,032.56, 27,645.12 and 11,079.84

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Solution

The fourth proportional to 20,032.56, 27,645.12 and 11,079.84 is: 15,290.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,032.56 : 27,645.12 = 11,079.84 : x
  2. Step 2: Convert to fraction form
    20,032.56/27,645.12 = 11,079.84/x
  3. Step 3: Cross multiply
    20,032.56x = 27,645.12 × 11,079.84
  4. Step 4: Simplify right side
    20,032.56x = 306,303,506.38
  5. Step 5: Solve for x
    x = 306,303,506.38/20,032.56
  6. Step 6: Final answer
    x = 15,290.28

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Half scale
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Double scale
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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.