Home / 31,565.82-47,287.99-19,724.25

Finding the Fourth Proportional to 31,565.82, 47,287.99 and 19,724.25

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Solution

The fourth proportional to 31,565.82, 47,287.99 and 19,724.25 is: 29,548.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,565.82 : 47,287.99 = 19,724.25 : x
  2. Step 2: Convert to fraction form
    31,565.82/47,287.99 = 19,724.25/x
  3. Step 3: Cross multiply
    31,565.82x = 47,287.99 × 19,724.25
  4. Step 4: Simplify right side
    31,565.82x = 932,720,136.76
  5. Step 5: Solve for x
    x = 932,720,136.76/31,565.82
  6. Step 6: Final answer
    x = 29,548.42

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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.