Home / 26,909.57-40,338.18-12,865.97

Finding the Fourth Proportional to 26,909.57, 40,338.18 and 12,865.97

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Solution

The fourth proportional to 26,909.57, 40,338.18 and 12,865.97 is: 19,286.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,909.57 : 40,338.18 = 12,865.97 : x
  2. Step 2: Convert to fraction form
    26,909.57/40,338.18 = 12,865.97/x
  3. Step 3: Cross multiply
    26,909.57x = 40,338.18 × 12,865.97
  4. Step 4: Simplify right side
    26,909.57x = 518,989,914.58
  5. Step 5: Solve for x
    x = 518,989,914.58/26,909.57
  6. Step 6: Final answer
    x = 19,286.44

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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.