Home / 38,175.86-57,256.25-12,872.87

Finding the Fourth Proportional to 38,175.86, 57,256.25 and 12,872.87

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Solution

The fourth proportional to 38,175.86, 57,256.25 and 12,872.87 is: 19,306.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,175.86 : 57,256.25 = 12,872.87 : x
  2. Step 2: Convert to fraction form
    38,175.86/57,256.25 = 12,872.87/x
  3. Step 3: Cross multiply
    38,175.86x = 57,256.25 × 12,872.87
  4. Step 4: Simplify right side
    38,175.86x = 737,052,521.48
  5. Step 5: Solve for x
    x = 737,052,521.48/38,175.86
  6. Step 6: Final answer
    x = 19,306.77

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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.