Home / 20,341.86-28,052.04-15,863.97

Finding the Fourth Proportional to 20,341.86, 28,052.04 and 15,863.97

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Solution

The fourth proportional to 20,341.86, 28,052.04 and 15,863.97 is: 21,876.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,341.86 : 28,052.04 = 15,863.97 : x
  2. Step 2: Convert to fraction form
    20,341.86/28,052.04 = 15,863.97/x
  3. Step 3: Cross multiply
    20,341.86x = 28,052.04 × 15,863.97
  4. Step 4: Simplify right side
    20,341.86x = 445,016,721.00
  5. Step 5: Solve for x
    x = 445,016,721.00/20,341.86
  6. Step 6: Final answer
    x = 21,876.89

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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.