Home / 28,979.30-43,452.28-15,453.79

Finding the Fourth Proportional to 28,979.30, 43,452.28 and 15,453.79

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Solution

The fourth proportional to 28,979.30, 43,452.28 and 15,453.79 is: 23,171.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,979.30 : 43,452.28 = 15,453.79 : x
  2. Step 2: Convert to fraction form
    28,979.30/43,452.28 = 15,453.79/x
  3. Step 3: Cross multiply
    28,979.30x = 43,452.28 × 15,453.79
  4. Step 4: Simplify right side
    28,979.30x = 671,502,320.83
  5. Step 5: Solve for x
    x = 671,502,320.83/28,979.30
  6. Step 6: Final answer
    x = 23,171.79

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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.