Home / 27,982.90-38,622.99-17,380.54

Finding the Fourth Proportional to 27,982.90, 38,622.99 and 17,380.54

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Solution

The fourth proportional to 27,982.90, 38,622.99 and 17,380.54 is: 23,989.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,982.90 : 38,622.99 = 17,380.54 : x
  2. Step 2: Convert to fraction form
    27,982.90/38,622.99 = 17,380.54/x
  3. Step 3: Cross multiply
    27,982.90x = 38,622.99 × 17,380.54
  4. Step 4: Simplify right side
    27,982.90x = 671,288,422.61
  5. Step 5: Solve for x
    x = 671,288,422.61/27,982.90
  6. Step 6: Final answer
    x = 23,989.24

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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.