Home / 26,616.60-36,729.78-15,278.28

Finding the Fourth Proportional to 26,616.60, 36,729.78 and 15,278.28

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Solution

The fourth proportional to 26,616.60, 36,729.78 and 15,278.28 is: 21,083.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,616.60 : 36,729.78 = 15,278.28 : x
  2. Step 2: Convert to fraction form
    26,616.60/36,729.78 = 15,278.28/x
  3. Step 3: Cross multiply
    26,616.60x = 36,729.78 × 15,278.28
  4. Step 4: Simplify right side
    26,616.60x = 561,167,863.18
  5. Step 5: Solve for x
    x = 561,167,863.18/26,616.60
  6. Step 6: Final answer
    x = 21,083.38

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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.