Home / 28,451.52-42,679.17-8,730.18

Finding the Fourth Proportional to 28,451.52, 42,679.17 and 8,730.18

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Solution

The fourth proportional to 28,451.52, 42,679.17 and 8,730.18 is: 13,095.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,451.52 : 42,679.17 = 8,730.18 : x
  2. Step 2: Convert to fraction form
    28,451.52/42,679.17 = 8,730.18/x
  3. Step 3: Cross multiply
    28,451.52x = 42,679.17 × 8,730.18
  4. Step 4: Simplify right side
    28,451.52x = 372,596,836.35
  5. Step 5: Solve for x
    x = 372,596,836.35/28,451.52
  6. Step 6: Final answer
    x = 13,095.85

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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.