Home / 26,375.10-36,398.07-15,765.90

Finding the Fourth Proportional to 26,375.10, 36,398.07 and 15,765.90

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Solution

The fourth proportional to 26,375.10, 36,398.07 and 15,765.90 is: 21,757.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,375.10 : 36,398.07 = 15,765.90 : x
  2. Step 2: Convert to fraction form
    26,375.10/36,398.07 = 15,765.90/x
  3. Step 3: Cross multiply
    26,375.10x = 36,398.07 × 15,765.90
  4. Step 4: Simplify right side
    26,375.10x = 573,848,331.81
  5. Step 5: Solve for x
    x = 573,848,331.81/26,375.10
  6. Step 6: Final answer
    x = 21,757.20

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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.