Home / 28,979.28-43,475.13-16,505.28

Finding the Fourth Proportional to 28,979.28, 43,475.13 and 16,505.28

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Solution

The fourth proportional to 28,979.28, 43,475.13 and 16,505.28 is: 24,761.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,979.28 : 43,475.13 = 16,505.28 : x
  2. Step 2: Convert to fraction form
    28,979.28/43,475.13 = 16,505.28/x
  3. Step 3: Cross multiply
    28,979.28x = 43,475.13 × 16,505.28
  4. Step 4: Simplify right side
    28,979.28x = 717,569,193.69
  5. Step 5: Solve for x
    x = 717,569,193.69/28,979.28
  6. Step 6: Final answer
    x = 24,761.46

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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.