Home / 28,166.38-42,250.12-9,442.92

Finding the Fourth Proportional to 28,166.38, 42,250.12 and 9,442.92

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Solution

The fourth proportional to 28,166.38, 42,250.12 and 9,442.92 is: 14,164.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,166.38 : 42,250.12 = 9,442.92 : x
  2. Step 2: Convert to fraction form
    28,166.38/42,250.12 = 9,442.92/x
  3. Step 3: Cross multiply
    28,166.38x = 42,250.12 × 9,442.92
  4. Step 4: Simplify right side
    28,166.38x = 398,964,479.54
  5. Step 5: Solve for x
    x = 398,964,479.54/28,166.38
  6. Step 6: Final answer
    x = 14,164.56

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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.