Home / 20,422.67-30,634.18-5,631.26

Finding the Fourth Proportional to 20,422.67, 30,634.18 and 5,631.26

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Solution

The fourth proportional to 20,422.67, 30,634.18 and 5,631.26 is: 8,446.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,422.67 : 30,634.18 = 5,631.26 : x
  2. Step 2: Convert to fraction form
    20,422.67/30,634.18 = 5,631.26/x
  3. Step 3: Cross multiply
    20,422.67x = 30,634.18 × 5,631.26
  4. Step 4: Simplify right side
    20,422.67x = 172,508,865.22
  5. Step 5: Solve for x
    x = 172,508,865.22/20,422.67
  6. Step 6: Final answer
    x = 8,446.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.