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Finding the Fourth Proportional to 28,034.38, 42,059.68 and 8,313.41

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Solution

The fourth proportional to 28,034.38, 42,059.68 and 8,313.41 is: 12,472.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,034.38 : 42,059.68 = 8,313.41 : x
  2. Step 2: Convert to fraction form
    28,034.38/42,059.68 = 8,313.41/x
  3. Step 3: Cross multiply
    28,034.38x = 42,059.68 × 8,313.41
  4. Step 4: Simplify right side
    28,034.38x = 349,659,279.94
  5. Step 5: Solve for x
    x = 349,659,279.94/28,034.38
  6. Step 6: Final answer
    x = 12,472.52

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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.