Home / 42,221.58-63,309-17,279.16

Finding the Fourth Proportional to 42,221.58, 63,309 and 17,279.16

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Solution

The fourth proportional to 42,221.58, 63,309 and 17,279.16 is: 25,909.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,221.58 : 63,309 = 17,279.16 : x
  2. Step 2: Convert to fraction form
    42,221.58/63,309 = 17,279.16/x
  3. Step 3: Cross multiply
    42,221.58x = 63,309 × 17,279.16
  4. Step 4: Simplify right side
    42,221.58x = 1,093,926,340.44
  5. Step 5: Solve for x
    x = 1,093,926,340.44/42,221.58
  6. Step 6: Final answer
    x = 25,909.18

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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.