Home / 38,778.24-58,176.96-12,485.92

Finding the Fourth Proportional to 38,778.24, 58,176.96 and 12,485.92

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Solution

The fourth proportional to 38,778.24, 58,176.96 and 12,485.92 is: 18,731.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,778.24 : 58,176.96 = 12,485.92 : x
  2. Step 2: Convert to fraction form
    38,778.24/58,176.96 = 12,485.92/x
  3. Step 3: Cross multiply
    38,778.24x = 58,176.96 × 12,485.92
  4. Step 4: Simplify right side
    38,778.24x = 726,392,868.40
  5. Step 5: Solve for x
    x = 726,392,868.40/38,778.24
  6. Step 6: Final answer
    x = 18,731.97

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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.