Home / 26,139.97-36,076.26-15,529.64

Finding the Fourth Proportional to 26,139.97, 36,076.26 and 15,529.64

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Solution

The fourth proportional to 26,139.97, 36,076.26 and 15,529.64 is: 21,432.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,139.97 : 36,076.26 = 15,529.64 : x
  2. Step 2: Convert to fraction form
    26,139.97/36,076.26 = 15,529.64/x
  3. Step 3: Cross multiply
    26,139.97x = 36,076.26 × 15,529.64
  4. Step 4: Simplify right side
    26,139.97x = 560,251,367.45
  5. Step 5: Solve for x
    x = 560,251,367.45/26,139.97
  6. Step 6: Final answer
    x = 21,432.75

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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.