Home / 30,422.05-45,543.22-22,471.78

Finding the Fourth Proportional to 30,422.05, 45,543.22 and 22,471.78

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Solution

The fourth proportional to 30,422.05, 45,543.22 and 22,471.78 is: 33,641.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,422.05 : 45,543.22 = 22,471.78 : x
  2. Step 2: Convert to fraction form
    30,422.05/45,543.22 = 22,471.78/x
  3. Step 3: Cross multiply
    30,422.05x = 45,543.22 × 22,471.78
  4. Step 4: Simplify right side
    30,422.05x = 1,023,436,992.62
  5. Step 5: Solve for x
    x = 1,023,436,992.62/30,422.05
  6. Step 6: Final answer
    x = 33,641.29

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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.