Home / 38,305.20-57,457.92-12,007.68

Finding the Fourth Proportional to 38,305.20, 57,457.92 and 12,007.68

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Solution

The fourth proportional to 38,305.20, 57,457.92 and 12,007.68 is: 18,011.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,305.20 : 57,457.92 = 12,007.68 : x
  2. Step 2: Convert to fraction form
    38,305.20/57,457.92 = 12,007.68/x
  3. Step 3: Cross multiply
    38,305.20x = 57,457.92 × 12,007.68
  4. Step 4: Simplify right side
    38,305.20x = 689,936,316.83
  5. Step 5: Solve for x
    x = 689,936,316.83/38,305.20
  6. Step 6: Final answer
    x = 18,011.56

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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.