Home / 48,488.76-72,734.82-13,431

Finding the Fourth Proportional to 48,488.76, 72,734.82 and 13,431

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Solution

The fourth proportional to 48,488.76, 72,734.82 and 13,431 is: 20,146.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,488.76 : 72,734.82 = 13,431 : x
  2. Step 2: Convert to fraction form
    48,488.76/72,734.82 = 13,431/x
  3. Step 3: Cross multiply
    48,488.76x = 72,734.82 × 13,431
  4. Step 4: Simplify right side
    48,488.76x = 976,901,367.42
  5. Step 5: Solve for x
    x = 976,901,367.42/48,488.76
  6. Step 6: Final answer
    x = 20,146.97

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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.