Home / 19,434.20-29,127.20-13,802.88

Finding the Fourth Proportional to 19,434.20, 29,127.20 and 13,802.88

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Solution

The fourth proportional to 19,434.20, 29,127.20 and 13,802.88 is: 20,687.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,434.20 : 29,127.20 = 13,802.88 : x
  2. Step 2: Convert to fraction form
    19,434.20/29,127.20 = 13,802.88/x
  3. Step 3: Cross multiply
    19,434.20x = 29,127.20 × 13,802.88
  4. Step 4: Simplify right side
    19,434.20x = 402,039,177.32
  5. Step 5: Solve for x
    x = 402,039,177.32/19,434.20
  6. Step 6: Final answer
    x = 20,687.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.