Home / 38,878.61-58,305.76-12,577.91

Finding the Fourth Proportional to 38,878.61, 58,305.76 and 12,577.91

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Solution

The fourth proportional to 38,878.61, 58,305.76 and 12,577.91 is: 18,862.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,878.61 : 58,305.76 = 12,577.91 : x
  2. Step 2: Convert to fraction form
    38,878.61/58,305.76 = 12,577.91/x
  3. Step 3: Cross multiply
    38,878.61x = 58,305.76 × 12,577.91
  4. Step 4: Simplify right side
    38,878.61x = 733,364,278.79
  5. Step 5: Solve for x
    x = 733,364,278.79/38,878.61
  6. Step 6: Final answer
    x = 18,862.93

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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.