Home / 38,753.91-58,140.09-12,458.66

Finding the Fourth Proportional to 38,753.91, 58,140.09 and 12,458.66

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Solution

The fourth proportional to 38,753.91, 58,140.09 and 12,458.66 is: 18,690.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,753.91 : 58,140.09 = 12,458.66 : x
  2. Step 2: Convert to fraction form
    38,753.91/58,140.09 = 12,458.66/x
  3. Step 3: Cross multiply
    38,753.91x = 58,140.09 × 12,458.66
  4. Step 4: Simplify right side
    38,753.91x = 724,347,322.98
  5. Step 5: Solve for x
    x = 724,347,322.98/38,753.91
  6. Step 6: Final answer
    x = 18,690.95

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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.