Home / 23,147.88-34,820.36-20,982.72

Finding the Fourth Proportional to 23,147.88, 34,820.36 and 20,982.72

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Solution

The fourth proportional to 23,147.88, 34,820.36 and 20,982.72 is: 31,563.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,147.88 : 34,820.36 = 20,982.72 : x
  2. Step 2: Convert to fraction form
    23,147.88/34,820.36 = 20,982.72/x
  3. Step 3: Cross multiply
    23,147.88x = 34,820.36 × 20,982.72
  4. Step 4: Simplify right side
    23,147.88x = 730,625,864.18
  5. Step 5: Solve for x
    x = 730,625,864.18/23,147.88
  6. Step 6: Final answer
    x = 31,563.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.