Home / 28,511.28-42,754.68-9,793.20

Finding the Fourth Proportional to 28,511.28, 42,754.68 and 9,793.20

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Solution

The fourth proportional to 28,511.28, 42,754.68 and 9,793.20 is: 14,685.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,511.28 : 42,754.68 = 9,793.20 : x
  2. Step 2: Convert to fraction form
    28,511.28/42,754.68 = 9,793.20/x
  3. Step 3: Cross multiply
    28,511.28x = 42,754.68 × 9,793.20
  4. Step 4: Simplify right side
    28,511.28x = 418,705,132.18
  5. Step 5: Solve for x
    x = 418,705,132.18/28,511.28
  6. Step 6: Final answer
    x = 14,685.60

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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.