Home / 23,100.80-34,651.20-20,489.60

Finding the Fourth Proportional to 23,100.80, 34,651.20 and 20,489.60

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Solution

The fourth proportional to 23,100.80, 34,651.20 and 20,489.60 is: 30,734.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,100.80 : 34,651.20 = 20,489.60 : x
  2. Step 2: Convert to fraction form
    23,100.80/34,651.20 = 20,489.60/x
  3. Step 3: Cross multiply
    23,100.80x = 34,651.20 × 20,489.60
  4. Step 4: Simplify right side
    23,100.80x = 709,989,227.52
  5. Step 5: Solve for x
    x = 709,989,227.52/23,100.80
  6. Step 6: Final answer
    x = 30,734.40

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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.