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Finding the Fourth Proportional to 28,785.04, 43,177.56 and 8,008.56

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Solution

The fourth proportional to 28,785.04, 43,177.56 and 8,008.56 is: 12,012.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,785.04 : 43,177.56 = 8,008.56 : x
  2. Step 2: Convert to fraction form
    28,785.04/43,177.56 = 8,008.56/x
  3. Step 3: Cross multiply
    28,785.04x = 43,177.56 × 8,008.56
  4. Step 4: Simplify right side
    28,785.04x = 345,790,079.91
  5. Step 5: Solve for x
    x = 345,790,079.91/28,785.04
  6. Step 6: Final answer
    x = 12,012.84

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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.