Home / 23,020.80-34,531.20-20,104.80

Finding the Fourth Proportional to 23,020.80, 34,531.20 and 20,104.80

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Solution

The fourth proportional to 23,020.80, 34,531.20 and 20,104.80 is: 30,157.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,020.80 : 34,531.20 = 20,104.80 : x
  2. Step 2: Convert to fraction form
    23,020.80/34,531.20 = 20,104.80/x
  3. Step 3: Cross multiply
    23,020.80x = 34,531.20 × 20,104.80
  4. Step 4: Simplify right side
    23,020.80x = 694,242,869.76
  5. Step 5: Solve for x
    x = 694,242,869.76/23,020.80
  6. Step 6: Final answer
    x = 30,157.20

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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.