Home / 28,287.71-42,366.92-13,506.98

Finding the Fourth Proportional to 28,287.71, 42,366.92 and 13,506.98

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Solution

The fourth proportional to 28,287.71, 42,366.92 and 13,506.98 is: 20,229.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,287.71 : 42,366.92 = 13,506.98 : x
  2. Step 2: Convert to fraction form
    28,287.71/42,366.92 = 13,506.98/x
  3. Step 3: Cross multiply
    28,287.71x = 42,366.92 × 13,506.98
  4. Step 4: Simplify right side
    28,287.71x = 572,248,963.03
  5. Step 5: Solve for x
    x = 572,248,963.03/28,287.71
  6. Step 6: Final answer
    x = 20,229.60

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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.