Home / 21,061.66-31,565.22-8,567.17

Finding the Fourth Proportional to 21,061.66, 31,565.22 and 8,567.17

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Solution

The fourth proportional to 21,061.66, 31,565.22 and 8,567.17 is: 12,839.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,061.66 : 31,565.22 = 8,567.17 : x
  2. Step 2: Convert to fraction form
    21,061.66/31,565.22 = 8,567.17/x
  3. Step 3: Cross multiply
    21,061.66x = 31,565.22 × 8,567.17
  4. Step 4: Simplify right side
    21,061.66x = 270,424,605.83
  5. Step 5: Solve for x
    x = 270,424,605.83/21,061.66
  6. Step 6: Final answer
    x = 12,839.66

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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.