Home / 15,781.29-21,785.33-10,041.10

Finding the Fourth Proportional to 15,781.29, 21,785.33 and 10,041.10

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Solution

The fourth proportional to 15,781.29, 21,785.33 and 10,041.10 is: 13,861.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,781.29 : 21,785.33 = 10,041.10 : x
  2. Step 2: Convert to fraction form
    15,781.29/21,785.33 = 10,041.10/x
  3. Step 3: Cross multiply
    15,781.29x = 21,785.33 × 10,041.10
  4. Step 4: Simplify right side
    15,781.29x = 218,748,677.06
  5. Step 5: Solve for x
    x = 218,748,677.06/15,781.29
  6. Step 6: Final answer
    x = 13,861.27

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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.