Home / 38,079.92-57,020.52-30,643.76

Finding the Fourth Proportional to 38,079.92, 57,020.52 and 30,643.76

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Solution

The fourth proportional to 38,079.92, 57,020.52 and 30,643.76 is: 45,885.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,079.92 : 57,020.52 = 30,643.76 : x
  2. Step 2: Convert to fraction form
    38,079.92/57,020.52 = 30,643.76/x
  3. Step 3: Cross multiply
    38,079.92x = 57,020.52 × 30,643.76
  4. Step 4: Simplify right side
    38,079.92x = 1,747,323,129.96
  5. Step 5: Solve for x
    x = 1,747,323,129.96/38,079.92
  6. Step 6: Final answer
    x = 45,885.68

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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.