Home / 27,640.54-38,143.92-15,065.38

Finding the Fourth Proportional to 27,640.54, 38,143.92 and 15,065.38

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Solution

The fourth proportional to 27,640.54, 38,143.92 and 15,065.38 is: 20,790.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,640.54 : 38,143.92 = 15,065.38 : x
  2. Step 2: Convert to fraction form
    27,640.54/38,143.92 = 15,065.38/x
  3. Step 3: Cross multiply
    27,640.54x = 38,143.92 × 15,065.38
  4. Step 4: Simplify right side
    27,640.54x = 574,652,649.49
  5. Step 5: Solve for x
    x = 574,652,649.49/27,640.54
  6. Step 6: Final answer
    x = 20,790.21

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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.