Home / 36,354.60-54,540.06-12,981

Finding the Fourth Proportional to 36,354.60, 54,540.06 and 12,981

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Solution

The fourth proportional to 36,354.60, 54,540.06 and 12,981 is: 19,474.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,354.60 : 54,540.06 = 12,981 : x
  2. Step 2: Convert to fraction form
    36,354.60/54,540.06 = 12,981/x
  3. Step 3: Cross multiply
    36,354.60x = 54,540.06 × 12,981
  4. Step 4: Simplify right side
    36,354.60x = 707,984,518.86
  5. Step 5: Solve for x
    x = 707,984,518.86/36,354.60
  6. Step 6: Final answer
    x = 19,474.41

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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.