Home / 19,517.15-29,273.30-5,478.28

Finding the Fourth Proportional to 19,517.15, 29,273.30 and 5,478.28

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Solution

The fourth proportional to 19,517.15, 29,273.30 and 5,478.28 is: 8,216.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,517.15 : 29,273.30 = 5,478.28 : x
  2. Step 2: Convert to fraction form
    19,517.15/29,273.30 = 5,478.28/x
  3. Step 3: Cross multiply
    19,517.15x = 29,273.30 × 5,478.28
  4. Step 4: Simplify right side
    19,517.15x = 160,367,418.56
  5. Step 5: Solve for x
    x = 160,367,418.56/19,517.15
  6. Step 6: Final answer
    x = 8,216.74

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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.