Home / 27,977.40-38,615.40-17,375.04

Finding the Fourth Proportional to 27,977.40, 38,615.40 and 17,375.04

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Solution

The fourth proportional to 27,977.40, 38,615.40 and 17,375.04 is: 23,981.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,977.40 : 38,615.40 = 17,375.04 : x
  2. Step 2: Convert to fraction form
    27,977.40/38,615.40 = 17,375.04/x
  3. Step 3: Cross multiply
    27,977.40x = 38,615.40 × 17,375.04
  4. Step 4: Simplify right side
    27,977.40x = 670,944,119.62
  5. Step 5: Solve for x
    x = 670,944,119.62/27,977.40
  6. Step 6: Final answer
    x = 23,981.65

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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.