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Finding the Fourth Proportional to 22,987, 34,486.66 and 12,454.54

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Solution

The fourth proportional to 22,987, 34,486.66 and 12,454.54 is: 18,685.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,987 : 34,486.66 = 12,454.54 : x
  2. Step 2: Convert to fraction form
    22,987/34,486.66 = 12,454.54/x
  3. Step 3: Cross multiply
    22,987x = 34,486.66 × 12,454.54
  4. Step 4: Simplify right side
    22,987x = 429,515,486.44
  5. Step 5: Solve for x
    x = 429,515,486.44/22,987
  6. Step 6: Final answer
    x = 18,685.15

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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.