Home / 38,750.91-58,134.56-12,457.70

Finding the Fourth Proportional to 38,750.91, 58,134.56 and 12,457.70

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Solution

The fourth proportional to 38,750.91, 58,134.56 and 12,457.70 is: 18,689.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,750.91 : 58,134.56 = 12,457.70 : x
  2. Step 2: Convert to fraction form
    38,750.91/58,134.56 = 12,457.70/x
  3. Step 3: Cross multiply
    38,750.91x = 58,134.56 × 12,457.70
  4. Step 4: Simplify right side
    38,750.91x = 724,222,843.23
  5. Step 5: Solve for x
    x = 724,222,843.23/38,750.91
  6. Step 6: Final answer
    x = 18,689.18

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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.