Home / 29,154.80-43,721.28-9,428.08

Finding the Fourth Proportional to 29,154.80, 43,721.28 and 9,428.08

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Solution

The fourth proportional to 29,154.80, 43,721.28 and 9,428.08 is: 14,138.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,154.80 : 43,721.28 = 9,428.08 : x
  2. Step 2: Convert to fraction form
    29,154.80/43,721.28 = 9,428.08/x
  3. Step 3: Cross multiply
    29,154.80x = 43,721.28 × 9,428.08
  4. Step 4: Simplify right side
    29,154.80x = 412,207,725.54
  5. Step 5: Solve for x
    x = 412,207,725.54/29,154.80
  6. Step 6: Final answer
    x = 14,138.59

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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.