Home / 38,376.80-57,565.20-12,089.60

Finding the Fourth Proportional to 38,376.80, 57,565.20 and 12,089.60

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Solution

The fourth proportional to 38,376.80, 57,565.20 and 12,089.60 is: 18,134.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,376.80 : 57,565.20 = 12,089.60 : x
  2. Step 2: Convert to fraction form
    38,376.80/57,565.20 = 12,089.60/x
  3. Step 3: Cross multiply
    38,376.80x = 57,565.20 × 12,089.60
  4. Step 4: Simplify right side
    38,376.80x = 695,940,241.92
  5. Step 5: Solve for x
    x = 695,940,241.92/38,376.80
  6. Step 6: Final answer
    x = 18,134.40

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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.