Home / 28,449.62-39,260.20-15,702.92

Finding the Fourth Proportional to 28,449.62, 39,260.20 and 15,702.92

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Solution

The fourth proportional to 28,449.62, 39,260.20 and 15,702.92 is: 21,669.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,449.62 : 39,260.20 = 15,702.92 : x
  2. Step 2: Convert to fraction form
    28,449.62/39,260.20 = 15,702.92/x
  3. Step 3: Cross multiply
    28,449.62x = 39,260.20 × 15,702.92
  4. Step 4: Simplify right side
    28,449.62x = 616,499,779.78
  5. Step 5: Solve for x
    x = 616,499,779.78/28,449.62
  6. Step 6: Final answer
    x = 21,669.88

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1.5x scale

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.