Home / 28,500.15-42,750.24-7,440.13

Finding the Fourth Proportional to 28,500.15, 42,750.24 and 7,440.13

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Solution

The fourth proportional to 28,500.15, 42,750.24 and 7,440.13 is: 11,160.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,500.15 : 42,750.24 = 7,440.13 : x
  2. Step 2: Convert to fraction form
    28,500.15/42,750.24 = 7,440.13/x
  3. Step 3: Cross multiply
    28,500.15x = 42,750.24 × 7,440.13
  4. Step 4: Simplify right side
    28,500.15x = 318,067,305.93
  5. Step 5: Solve for x
    x = 318,067,305.93/28,500.15
  6. Step 6: Final answer
    x = 11,160.20

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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.