Home / 42,620.20-63,882.30-20,444.20

Finding the Fourth Proportional to 42,620.20, 63,882.30 and 20,444.20

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Solution

The fourth proportional to 42,620.20, 63,882.30 and 20,444.20 is: 30,643.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,620.20 : 63,882.30 = 20,444.20 : x
  2. Step 2: Convert to fraction form
    42,620.20/63,882.30 = 20,444.20/x
  3. Step 3: Cross multiply
    42,620.20x = 63,882.30 × 20,444.20
  4. Step 4: Simplify right side
    42,620.20x = 1,306,022,517.66
  5. Step 5: Solve for x
    x = 1,306,022,517.66/42,620.20
  6. Step 6: Final answer
    x = 30,643.28

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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.