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Finding the Fourth Proportional to 28,084.80, 42,113.08 and 9,358.27

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Solution

The fourth proportional to 28,084.80, 42,113.08 and 9,358.27 is: 14,032.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,084.80 : 42,113.08 = 9,358.27 : x
  2. Step 2: Convert to fraction form
    28,084.80/42,113.08 = 9,358.27/x
  3. Step 3: Cross multiply
    28,084.80x = 42,113.08 × 9,358.27
  4. Step 4: Simplify right side
    28,084.80x = 394,105,573.17
  5. Step 5: Solve for x
    x = 394,105,573.17/28,084.80
  6. Step 6: Final answer
    x = 14,032.70

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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.