Home / 20,488.77-28,282.45-16,013.97

Finding the Fourth Proportional to 20,488.77, 28,282.45 and 16,013.97

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Solution

The fourth proportional to 20,488.77, 28,282.45 and 16,013.97 is: 22,105.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,488.77 : 28,282.45 = 16,013.97 : x
  2. Step 2: Convert to fraction form
    20,488.77/28,282.45 = 16,013.97/x
  3. Step 3: Cross multiply
    20,488.77x = 28,282.45 × 16,013.97
  4. Step 4: Simplify right side
    20,488.77x = 452,914,305.83
  5. Step 5: Solve for x
    x = 452,914,305.83/20,488.77
  6. Step 6: Final answer
    x = 22,105.49

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1.5x scale

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.