Home / 22,107.21-30,496.55-13,709.13

Finding the Fourth Proportional to 22,107.21, 30,496.55 and 13,709.13

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Solution

The fourth proportional to 22,107.21, 30,496.55 and 13,709.13 is: 18,911.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,107.21 : 30,496.55 = 13,709.13 : x
  2. Step 2: Convert to fraction form
    22,107.21/30,496.55 = 13,709.13/x
  3. Step 3: Cross multiply
    22,107.21x = 30,496.55 × 13,709.13
  4. Step 4: Simplify right side
    22,107.21x = 418,081,099.96
  5. Step 5: Solve for x
    x = 418,081,099.96/22,107.21
  6. Step 6: Final answer
    x = 18,911.53

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Half scale
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Double scale
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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.