Home / 20,934,449.28-31,397,534.82-19,896,298.74

Finding the Fourth Proportional to 20,934,449.28, 31,397,534.82 and 19,896,298.74

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Solution

The fourth proportional to 20,934,449.28, 31,397,534.82 and 19,896,298.74 is: 29,840,514.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,934,449.28 : 31,397,534.82 = 19,896,298.74 : x
  2. Step 2: Convert to fraction form
    20,934,449.28/31,397,534.82 = 19,896,298.74/x
  3. Step 3: Cross multiply
    20,934,449.28x = 31,397,534.82 × 19,896,298.74
  4. Step 4: Simplify right side
    20,934,449.28x = 624,694,732,478,272.12
  5. Step 5: Solve for x
    x = 624,694,732,478,272.12/20,934,449.28
  6. Step 6: Final answer
    x = 29,840,514.27

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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.