Home / 23,489.21-32,396.28-20,650.55

Finding the Fourth Proportional to 23,489.21, 32,396.28 and 20,650.55

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Solution

The fourth proportional to 23,489.21, 32,396.28 and 20,650.55 is: 28,481.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,489.21 : 32,396.28 = 20,650.55 : x
  2. Step 2: Convert to fraction form
    23,489.21/32,396.28 = 20,650.55/x
  3. Step 3: Cross multiply
    23,489.21x = 32,396.28 × 20,650.55
  4. Step 4: Simplify right side
    23,489.21x = 669,000,999.95
  5. Step 5: Solve for x
    x = 669,000,999.95/23,489.21
  6. Step 6: Final answer
    x = 28,481.20

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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.