Home / 28,520.96-42,799.76-15,382.48

Finding the Fourth Proportional to 28,520.96, 42,799.76 and 15,382.48

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Solution

The fourth proportional to 28,520.96, 42,799.76 and 15,382.48 is: 23,083.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,520.96 : 42,799.76 = 15,382.48 : x
  2. Step 2: Convert to fraction form
    28,520.96/42,799.76 = 15,382.48/x
  3. Step 3: Cross multiply
    28,520.96x = 42,799.76 × 15,382.48
  4. Step 4: Simplify right side
    28,520.96x = 658,366,452.20
  5. Step 5: Solve for x
    x = 658,366,452.20/28,520.96
  6. Step 6: Final answer
    x = 23,083.60

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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.