Home / 20,226.11-27,915.71-13,064.90

Finding the Fourth Proportional to 20,226.11, 27,915.71 and 13,064.90

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Solution

The fourth proportional to 20,226.11, 27,915.71 and 13,064.90 is: 18,031.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,226.11 : 27,915.71 = 13,064.90 : x
  2. Step 2: Convert to fraction form
    20,226.11/27,915.71 = 13,064.90/x
  3. Step 3: Cross multiply
    20,226.11x = 27,915.71 × 13,064.90
  4. Step 4: Simplify right side
    20,226.11x = 364,715,754.68
  5. Step 5: Solve for x
    x = 364,715,754.68/20,226.11
  6. Step 6: Final answer
    x = 18,031.93

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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.