Home / 26,979.20-40,432.35-18,069.20

Finding the Fourth Proportional to 26,979.20, 40,432.35 and 18,069.20

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Solution

The fourth proportional to 26,979.20, 40,432.35 and 18,069.20 is: 27,079.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,979.20 : 40,432.35 = 18,069.20 : x
  2. Step 2: Convert to fraction form
    26,979.20/40,432.35 = 18,069.20/x
  3. Step 3: Cross multiply
    26,979.20x = 40,432.35 × 18,069.20
  4. Step 4: Simplify right side
    26,979.20x = 730,580,218.62
  5. Step 5: Solve for x
    x = 730,580,218.62/26,979.20
  6. Step 6: Final answer
    x = 27,079.39

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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.