Home / 27,620.72-38,116.68-16,442

Finding the Fourth Proportional to 27,620.72, 38,116.68 and 16,442

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Solution

The fourth proportional to 27,620.72, 38,116.68 and 16,442 is: 22,690.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,620.72 : 38,116.68 = 16,442 : x
  2. Step 2: Convert to fraction form
    27,620.72/38,116.68 = 16,442/x
  3. Step 3: Cross multiply
    27,620.72x = 38,116.68 × 16,442
  4. Step 4: Simplify right side
    27,620.72x = 626,714,452.56
  5. Step 5: Solve for x
    x = 626,714,452.56/27,620.72
  6. Step 6: Final answer
    x = 22,690.01

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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.