Home / 38,987.25-58,488.08-12,339.95

Finding the Fourth Proportional to 38,987.25, 58,488.08 and 12,339.95

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Solution

The fourth proportional to 38,987.25, 58,488.08 and 12,339.95 is: 18,512.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,987.25 : 58,488.08 = 12,339.95 : x
  2. Step 2: Convert to fraction form
    38,987.25/58,488.08 = 12,339.95/x
  3. Step 3: Cross multiply
    38,987.25x = 58,488.08 × 12,339.95
  4. Step 4: Simplify right side
    38,987.25x = 721,739,628.66
  5. Step 5: Solve for x
    x = 721,739,628.66/38,987.25
  6. Step 6: Final answer
    x = 18,512.20

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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.