Home / 26,278.98-36,282.69-20,218.44

Finding the Fourth Proportional to 26,278.98, 36,282.69 and 20,218.44

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Solution

The fourth proportional to 26,278.98, 36,282.69 and 20,218.44 is: 27,915.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,278.98 : 36,282.69 = 20,218.44 : x
  2. Step 2: Convert to fraction form
    26,278.98/36,282.69 = 20,218.44/x
  3. Step 3: Cross multiply
    26,278.98x = 36,282.69 × 20,218.44
  4. Step 4: Simplify right side
    26,278.98x = 733,579,390.80
  5. Step 5: Solve for x
    x = 733,579,390.80/26,278.98
  6. Step 6: Final answer
    x = 27,915.06

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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.