Home / 20,264.57-27,965.18-11,311.91

Finding the Fourth Proportional to 20,264.57, 27,965.18 and 11,311.91

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Solution

The fourth proportional to 20,264.57, 27,965.18 and 11,311.91 is: 15,610.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,264.57 : 27,965.18 = 11,311.91 : x
  2. Step 2: Convert to fraction form
    20,264.57/27,965.18 = 11,311.91/x
  3. Step 3: Cross multiply
    20,264.57x = 27,965.18 × 11,311.91
  4. Step 4: Simplify right side
    20,264.57x = 316,339,599.29
  5. Step 5: Solve for x
    x = 316,339,599.29/20,264.57
  6. Step 6: Final answer
    x = 15,610.48

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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.