Home / 22,620.10-31,226.43-15,079

Finding the Fourth Proportional to 22,620.10, 31,226.43 and 15,079

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Solution

The fourth proportional to 22,620.10, 31,226.43 and 15,079 is: 20,816.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,620.10 : 31,226.43 = 15,079 : x
  2. Step 2: Convert to fraction form
    22,620.10/31,226.43 = 15,079/x
  3. Step 3: Cross multiply
    22,620.10x = 31,226.43 × 15,079
  4. Step 4: Simplify right side
    22,620.10x = 470,863,337.97
  5. Step 5: Solve for x
    x = 470,863,337.97/22,620.10
  6. Step 6: Final answer
    x = 20,816.15

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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.