Home / 28,660.26-42,999.02-8,940.90

Finding the Fourth Proportional to 28,660.26, 42,999.02 and 8,940.90

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Solution

The fourth proportional to 28,660.26, 42,999.02 and 8,940.90 is: 13,414.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,660.26 : 42,999.02 = 8,940.90 : x
  2. Step 2: Convert to fraction form
    28,660.26/42,999.02 = 8,940.90/x
  3. Step 3: Cross multiply
    28,660.26x = 42,999.02 × 8,940.90
  4. Step 4: Simplify right side
    28,660.26x = 384,449,937.92
  5. Step 5: Solve for x
    x = 384,449,937.92/28,660.26
  6. Step 6: Final answer
    x = 13,414.04

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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.