Home / 20,195.10-30,256.20-17,862.30

Finding the Fourth Proportional to 20,195.10, 30,256.20 and 17,862.30

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Solution

The fourth proportional to 20,195.10, 30,256.20 and 17,862.30 is: 26,761.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,195.10 : 30,256.20 = 17,862.30 : x
  2. Step 2: Convert to fraction form
    20,195.10/30,256.20 = 17,862.30/x
  3. Step 3: Cross multiply
    20,195.10x = 30,256.20 × 17,862.30
  4. Step 4: Simplify right side
    20,195.10x = 540,445,321.26
  5. Step 5: Solve for x
    x = 540,445,321.26/20,195.10
  6. Step 6: Final answer
    x = 26,761.21

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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.