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Finding the Fourth Proportional to 27,079.53, 40,619.88 and 8,359.59

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Solution

The fourth proportional to 27,079.53, 40,619.88 and 8,359.59 is: 12,539.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,079.53 : 40,619.88 = 8,359.59 : x
  2. Step 2: Convert to fraction form
    27,079.53/40,619.88 = 8,359.59/x
  3. Step 3: Cross multiply
    27,079.53x = 40,619.88 × 8,359.59
  4. Step 4: Simplify right side
    27,079.53x = 339,565,542.65
  5. Step 5: Solve for x
    x = 339,565,542.65/27,079.53
  6. Step 6: Final answer
    x = 12,539.57

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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.