Home / 29,320.47-40,462.08-15,891.58

Finding the Fourth Proportional to 29,320.47, 40,462.08 and 15,891.58

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Solution

The fourth proportional to 29,320.47, 40,462.08 and 15,891.58 is: 21,930.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,320.47 : 40,462.08 = 15,891.58 : x
  2. Step 2: Convert to fraction form
    29,320.47/40,462.08 = 15,891.58/x
  3. Step 3: Cross multiply
    29,320.47x = 40,462.08 × 15,891.58
  4. Step 4: Simplify right side
    29,320.47x = 643,006,381.29
  5. Step 5: Solve for x
    x = 643,006,381.29/29,320.47
  6. Step 6: Final answer
    x = 21,930.29

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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.