Home / 28,562.40-39,414.24-15,986.88

Finding the Fourth Proportional to 28,562.40, 39,414.24 and 15,986.88

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Solution

The fourth proportional to 28,562.40, 39,414.24 and 15,986.88 is: 22,060.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,562.40 : 39,414.24 = 15,986.88 : x
  2. Step 2: Convert to fraction form
    28,562.40/39,414.24 = 15,986.88/x
  3. Step 3: Cross multiply
    28,562.40x = 39,414.24 × 15,986.88
  4. Step 4: Simplify right side
    28,562.40x = 630,110,725.17
  5. Step 5: Solve for x
    x = 630,110,725.17/28,562.40
  6. Step 6: Final answer
    x = 22,060.85

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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.