Home / 27,989.68-38,625.24-15,414.16

Finding the Fourth Proportional to 27,989.68, 38,625.24 and 15,414.16

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Solution

The fourth proportional to 27,989.68, 38,625.24 and 15,414.16 is: 21,271.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,989.68 : 38,625.24 = 15,414.16 : x
  2. Step 2: Convert to fraction form
    27,989.68/38,625.24 = 15,414.16/x
  3. Step 3: Cross multiply
    27,989.68x = 38,625.24 × 15,414.16
  4. Step 4: Simplify right side
    27,989.68x = 595,375,629.40
  5. Step 5: Solve for x
    x = 595,375,629.40/27,989.68
  6. Step 6: Final answer
    x = 21,271.26

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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.