Home / 29,320.44-40,462.20-15,891.72

Finding the Fourth Proportional to 29,320.44, 40,462.20 and 15,891.72

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Solution

The fourth proportional to 29,320.44, 40,462.20 and 15,891.72 is: 21,930.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,320.44 : 40,462.20 = 15,891.72 : x
  2. Step 2: Convert to fraction form
    29,320.44/40,462.20 = 15,891.72/x
  3. Step 3: Cross multiply
    29,320.44x = 40,462.20 × 15,891.72
  4. Step 4: Simplify right side
    29,320.44x = 643,013,952.98
  5. Step 5: Solve for x
    x = 643,013,952.98/29,320.44
  6. Step 6: Final answer
    x = 21,930.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.