Home / 25,920.82-38,873.13-8,387.02

Finding the Fourth Proportional to 25,920.82, 38,873.13 and 8,387.02

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Solution

The fourth proportional to 25,920.82, 38,873.13 and 8,387.02 is: 12,577.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,920.82 : 38,873.13 = 8,387.02 : x
  2. Step 2: Convert to fraction form
    25,920.82/38,873.13 = 8,387.02/x
  3. Step 3: Cross multiply
    25,920.82x = 38,873.13 × 8,387.02
  4. Step 4: Simplify right side
    25,920.82x = 326,029,718.77
  5. Step 5: Solve for x
    x = 326,029,718.77/25,920.82
  6. Step 6: Final answer
    x = 12,577.91

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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.