Home / 55,679.25-83,517.26-20,618.13

Finding the Fourth Proportional to 55,679.25, 83,517.26 and 20,618.13

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Solution

The fourth proportional to 55,679.25, 83,517.26 and 20,618.13 is: 30,926.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,679.25 : 83,517.26 = 20,618.13 : x
  2. Step 2: Convert to fraction form
    55,679.25/83,517.26 = 20,618.13/x
  3. Step 3: Cross multiply
    55,679.25x = 83,517.26 × 20,618.13
  4. Step 4: Simplify right side
    55,679.25x = 1,721,969,620.83
  5. Step 5: Solve for x
    x = 1,721,969,620.83/55,679.25
  6. Step 6: Final answer
    x = 30,926.60

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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.