Home / 26,354.56-39,531.84-12,121.60

Finding the Fourth Proportional to 26,354.56, 39,531.84 and 12,121.60

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Solution

The fourth proportional to 26,354.56, 39,531.84 and 12,121.60 is: 18,182.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,354.56 : 39,531.84 = 12,121.60 : x
  2. Step 2: Convert to fraction form
    26,354.56/39,531.84 = 12,121.60/x
  3. Step 3: Cross multiply
    26,354.56x = 39,531.84 × 12,121.60
  4. Step 4: Simplify right side
    26,354.56x = 479,189,151.74
  5. Step 5: Solve for x
    x = 479,189,151.74/26,354.56
  6. Step 6: Final answer
    x = 18,182.40

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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.