Home / 29,081.20-40,127.22-17,142.88

Finding the Fourth Proportional to 29,081.20, 40,127.22 and 17,142.88

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Solution

The fourth proportional to 29,081.20, 40,127.22 and 17,142.88 is: 23,654.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,081.20 : 40,127.22 = 17,142.88 : x
  2. Step 2: Convert to fraction form
    29,081.20/40,127.22 = 17,142.88/x
  3. Step 3: Cross multiply
    29,081.20x = 40,127.22 × 17,142.88
  4. Step 4: Simplify right side
    29,081.20x = 687,896,117.19
  5. Step 5: Solve for x
    x = 687,896,117.19/29,081.20
  6. Step 6: Final answer
    x = 23,654.32

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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.