Home / 27,625.30-38,122.19-15,689.14

Finding the Fourth Proportional to 27,625.30, 38,122.19 and 15,689.14

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Solution

The fourth proportional to 27,625.30, 38,122.19 and 15,689.14 is: 21,650.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,625.30 : 38,122.19 = 15,689.14 : x
  2. Step 2: Convert to fraction form
    27,625.30/38,122.19 = 15,689.14/x
  3. Step 3: Cross multiply
    27,625.30x = 38,122.19 × 15,689.14
  4. Step 4: Simplify right side
    27,625.30x = 598,104,297.57
  5. Step 5: Solve for x
    x = 598,104,297.57/27,625.30
  6. Step 6: Final answer
    x = 21,650.60

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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.