Home / 42,422.80-63,634.20-11,261.20

Finding the Fourth Proportional to 42,422.80, 63,634.20 and 11,261.20

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Solution

The fourth proportional to 42,422.80, 63,634.20 and 11,261.20 is: 16,891.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,422.80 : 63,634.20 = 11,261.20 : x
  2. Step 2: Convert to fraction form
    42,422.80/63,634.20 = 11,261.20/x
  3. Step 3: Cross multiply
    42,422.80x = 63,634.20 × 11,261.20
  4. Step 4: Simplify right side
    42,422.80x = 716,597,453.04
  5. Step 5: Solve for x
    x = 716,597,453.04/42,422.80
  6. Step 6: Final answer
    x = 16,891.80

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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.