Home / 26,691.44-36,830.43-15,356.63

Finding the Fourth Proportional to 26,691.44, 36,830.43 and 15,356.63

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Solution

The fourth proportional to 26,691.44, 36,830.43 and 15,356.63 is: 21,189.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,691.44 : 36,830.43 = 15,356.63 : x
  2. Step 2: Convert to fraction form
    26,691.44/36,830.43 = 15,356.63/x
  3. Step 3: Cross multiply
    26,691.44x = 36,830.43 × 15,356.63
  4. Step 4: Simplify right side
    26,691.44x = 565,591,286.25
  5. Step 5: Solve for x
    x = 565,591,286.25/26,691.44
  6. Step 6: Final answer
    x = 21,189.99

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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.