Home / 20,713.27-28,584.35-11,281.87

Finding the Fourth Proportional to 20,713.27, 28,584.35 and 11,281.87

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Solution

The fourth proportional to 20,713.27, 28,584.35 and 11,281.87 is: 15,569.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,713.27 : 28,584.35 = 11,281.87 : x
  2. Step 2: Convert to fraction form
    20,713.27/28,584.35 = 11,281.87/x
  3. Step 3: Cross multiply
    20,713.27x = 28,584.35 × 11,281.87
  4. Step 4: Simplify right side
    20,713.27x = 322,484,920.73
  5. Step 5: Solve for x
    x = 322,484,920.73/20,713.27
  6. Step 6: Final answer
    x = 15,569.00

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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.