Home / 28,456.97-39,272.58-16,521.62

Finding the Fourth Proportional to 28,456.97, 39,272.58 and 16,521.62

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Solution

The fourth proportional to 28,456.97, 39,272.58 and 16,521.62 is: 22,800.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,456.97 : 39,272.58 = 16,521.62 : x
  2. Step 2: Convert to fraction form
    28,456.97/39,272.58 = 16,521.62/x
  3. Step 3: Cross multiply
    28,456.97x = 39,272.58 × 16,521.62
  4. Step 4: Simplify right side
    28,456.97x = 648,846,446.82
  5. Step 5: Solve for x
    x = 648,846,446.82/28,456.97
  6. Step 6: Final answer
    x = 22,800.97

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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.