Home / 28,306.74-39,053.33-16,979.91

Finding the Fourth Proportional to 28,306.74, 39,053.33 and 16,979.91

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Solution

The fourth proportional to 28,306.74, 39,053.33 and 16,979.91 is: 23,426.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,306.74 : 39,053.33 = 16,979.91 : x
  2. Step 2: Convert to fraction form
    28,306.74/39,053.33 = 16,979.91/x
  3. Step 3: Cross multiply
    28,306.74x = 39,053.33 × 16,979.91
  4. Step 4: Simplify right side
    28,306.74x = 663,121,943.70
  5. Step 5: Solve for x
    x = 663,121,943.70/28,306.74
  6. Step 6: Final answer
    x = 23,426.29

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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.