Home / 20,881.77-28,800.92-17,976.23

Finding the Fourth Proportional to 20,881.77, 28,800.92 and 17,976.23

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Solution

The fourth proportional to 20,881.77, 28,800.92 and 17,976.23 is: 24,793.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,881.77 : 28,800.92 = 17,976.23 : x
  2. Step 2: Convert to fraction form
    20,881.77/28,800.92 = 17,976.23/x
  3. Step 3: Cross multiply
    20,881.77x = 28,800.92 × 17,976.23
  4. Step 4: Simplify right side
    20,881.77x = 517,731,728.25
  5. Step 5: Solve for x
    x = 517,731,728.25/20,881.77
  6. Step 6: Final answer
    x = 24,793.48

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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.