Home / 38,376.72-57,560.04-12,081.60

Finding the Fourth Proportional to 38,376.72, 57,560.04 and 12,081.60

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Solution

The fourth proportional to 38,376.72, 57,560.04 and 12,081.60 is: 18,120.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,376.72 : 57,560.04 = 12,081.60 : x
  2. Step 2: Convert to fraction form
    38,376.72/57,560.04 = 12,081.60/x
  3. Step 3: Cross multiply
    38,376.72x = 57,560.04 × 12,081.60
  4. Step 4: Simplify right side
    38,376.72x = 695,417,379.26
  5. Step 5: Solve for x
    x = 695,417,379.26/38,376.72
  6. Step 6: Final answer
    x = 18,120.81

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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.