Home / 38,753.10-58,129.44-12,457.92

Finding the Fourth Proportional to 38,753.10, 58,129.44 and 12,457.92

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Solution

The fourth proportional to 38,753.10, 58,129.44 and 12,457.92 is: 18,686.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,753.10 : 58,129.44 = 12,457.92 : x
  2. Step 2: Convert to fraction form
    38,753.10/58,129.44 = 12,457.92/x
  3. Step 3: Cross multiply
    38,753.10x = 58,129.44 × 12,457.92
  4. Step 4: Simplify right side
    38,753.10x = 724,171,913.16
  5. Step 5: Solve for x
    x = 724,171,913.16/38,753.10
  6. Step 6: Final answer
    x = 18,686.81

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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.