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Finding the Fourth Proportional to 26,279, 36,265.80 and 14,343.10

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Solution

The fourth proportional to 26,279, 36,265.80 and 14,343.10 is: 19,793.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,279 : 36,265.80 = 14,343.10 : x
  2. Step 2: Convert to fraction form
    26,279/36,265.80 = 14,343.10/x
  3. Step 3: Cross multiply
    26,279x = 36,265.80 × 14,343.10
  4. Step 4: Simplify right side
    26,279x = 520,163,995.98
  5. Step 5: Solve for x
    x = 520,163,995.98/26,279
  6. Step 6: Final answer
    x = 19,793.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.