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Finding the Fourth Proportional to 26,995.42, 40,493.12 and 13,839.40

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Solution

The fourth proportional to 26,995.42, 40,493.12 and 13,839.40 is: 20,759.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,995.42 : 40,493.12 = 13,839.40 : x
  2. Step 2: Convert to fraction form
    26,995.42/40,493.12 = 13,839.40/x
  3. Step 3: Cross multiply
    26,995.42x = 40,493.12 × 13,839.40
  4. Step 4: Simplify right side
    26,995.42x = 560,400,484.93
  5. Step 5: Solve for x
    x = 560,400,484.93/26,995.42
  6. Step 6: Final answer
    x = 20,759.09

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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.