Home / 40,189.52-60,288.76-13,891.28

Finding the Fourth Proportional to 40,189.52, 60,288.76 and 13,891.28

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Solution

The fourth proportional to 40,189.52, 60,288.76 and 13,891.28 is: 20,838.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,189.52 : 60,288.76 = 13,891.28 : x
  2. Step 2: Convert to fraction form
    40,189.52/60,288.76 = 13,891.28/x
  3. Step 3: Cross multiply
    40,189.52x = 60,288.76 × 13,891.28
  4. Step 4: Simplify right side
    40,189.52x = 837,488,046.01
  5. Step 5: Solve for x
    x = 837,488,046.01/40,189.52
  6. Step 6: Final answer
    x = 20,838.47

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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.