Home / 27,938.64-38,542.32-17,324.40

Finding the Fourth Proportional to 27,938.64, 38,542.32 and 17,324.40

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Solution

The fourth proportional to 27,938.64, 38,542.32 and 17,324.40 is: 23,899.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,938.64 : 38,542.32 = 17,324.40 : x
  2. Step 2: Convert to fraction form
    27,938.64/38,542.32 = 17,324.40/x
  3. Step 3: Cross multiply
    27,938.64x = 38,542.32 × 17,324.40
  4. Step 4: Simplify right side
    27,938.64x = 667,722,568.61
  5. Step 5: Solve for x
    x = 667,722,568.61/27,938.64
  6. Step 6: Final answer
    x = 23,899.61

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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.