Home / 34,387.20-51,550.80-13,341.60

Finding the Fourth Proportional to 34,387.20, 51,550.80 and 13,341.60

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Solution

The fourth proportional to 34,387.20, 51,550.80 and 13,341.60 is: 20,000.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,387.20 : 51,550.80 = 13,341.60 : x
  2. Step 2: Convert to fraction form
    34,387.20/51,550.80 = 13,341.60/x
  3. Step 3: Cross multiply
    34,387.20x = 51,550.80 × 13,341.60
  4. Step 4: Simplify right side
    34,387.20x = 687,770,153.28
  5. Step 5: Solve for x
    x = 687,770,153.28/34,387.20
  6. Step 6: Final answer
    x = 20,000.76

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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.