Home / 24,081.30-36,135.60-12,987.75

Finding the Fourth Proportional to 24,081.30, 36,135.60 and 12,987.75

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Solution

The fourth proportional to 24,081.30, 36,135.60 and 12,987.75 is: 19,488.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,081.30 : 36,135.60 = 12,987.75 : x
  2. Step 2: Convert to fraction form
    24,081.30/36,135.60 = 12,987.75/x
  3. Step 3: Cross multiply
    24,081.30x = 36,135.60 × 12,987.75
  4. Step 4: Simplify right side
    24,081.30x = 469,320,138.90
  5. Step 5: Solve for x
    x = 469,320,138.90/24,081.30
  6. Step 6: Final answer
    x = 19,488.99

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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.