Home / 28,251.20-38,988.48-16,315.04

Finding the Fourth Proportional to 28,251.20, 38,988.48 and 16,315.04

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Solution

The fourth proportional to 28,251.20, 38,988.48 and 16,315.04 is: 22,515.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,251.20 : 38,988.48 = 16,315.04 : x
  2. Step 2: Convert to fraction form
    28,251.20/38,988.48 = 16,315.04/x
  3. Step 3: Cross multiply
    28,251.20x = 38,988.48 × 16,315.04
  4. Step 4: Simplify right side
    28,251.20x = 636,098,610.74
  5. Step 5: Solve for x
    x = 636,098,610.74/28,251.20
  6. Step 6: Final answer
    x = 22,515.81

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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.