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Finding the Fourth Proportional to 26,799.30, 40,186.80 and 10,153.80

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Solution

The fourth proportional to 26,799.30, 40,186.80 and 10,153.80 is: 15,226.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,799.30 : 40,186.80 = 10,153.80 : x
  2. Step 2: Convert to fraction form
    26,799.30/40,186.80 = 10,153.80/x
  3. Step 3: Cross multiply
    26,799.30x = 40,186.80 × 10,153.80
  4. Step 4: Simplify right side
    26,799.30x = 408,048,729.84
  5. Step 5: Solve for x
    x = 408,048,729.84/26,799.30
  6. Step 6: Final answer
    x = 15,226.10

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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.