Home / 23,479.76-32,344.20-20,111.60

Finding the Fourth Proportional to 23,479.76, 32,344.20 and 20,111.60

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Solution

The fourth proportional to 23,479.76, 32,344.20 and 20,111.60 is: 27,704.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,479.76 : 32,344.20 = 20,111.60 : x
  2. Step 2: Convert to fraction form
    23,479.76/32,344.20 = 20,111.60/x
  3. Step 3: Cross multiply
    23,479.76x = 32,344.20 × 20,111.60
  4. Step 4: Simplify right side
    23,479.76x = 650,493,612.72
  5. Step 5: Solve for x
    x = 650,493,612.72/23,479.76
  6. Step 6: Final answer
    x = 27,704.44

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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.