Home / 28,515.24-42,777.42-8,793.78

Finding the Fourth Proportional to 28,515.24, 42,777.42 and 8,793.78

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Solution

The fourth proportional to 28,515.24, 42,777.42 and 8,793.78 is: 13,192.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,515.24 : 42,777.42 = 8,793.78 : x
  2. Step 2: Convert to fraction form
    28,515.24/42,777.42 = 8,793.78/x
  3. Step 3: Cross multiply
    28,515.24x = 42,777.42 × 8,793.78
  4. Step 4: Simplify right side
    28,515.24x = 376,175,220.45
  5. Step 5: Solve for x
    x = 376,175,220.45/28,515.24
  6. Step 6: Final answer
    x = 13,192.08

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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.