Home / 28,147.32-42,201.54-12,344.76

Finding the Fourth Proportional to 28,147.32, 42,201.54 and 12,344.76

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Solution

The fourth proportional to 28,147.32, 42,201.54 and 12,344.76 is: 18,508.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,147.32 : 42,201.54 = 12,344.76 : x
  2. Step 2: Convert to fraction form
    28,147.32/42,201.54 = 12,344.76/x
  3. Step 3: Cross multiply
    28,147.32x = 42,201.54 × 12,344.76
  4. Step 4: Simplify right side
    28,147.32x = 520,967,882.93
  5. Step 5: Solve for x
    x = 520,967,882.93/28,147.32
  6. Step 6: Final answer
    x = 18,508.61

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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.