Home / 20,512.02-30,772.39-11,631.52

Finding the Fourth Proportional to 20,512.02, 30,772.39 and 11,631.52

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Solution

The fourth proportional to 20,512.02, 30,772.39 and 11,631.52 is: 17,449.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,512.02 : 30,772.39 = 11,631.52 : x
  2. Step 2: Convert to fraction form
    20,512.02/30,772.39 = 11,631.52/x
  3. Step 3: Cross multiply
    20,512.02x = 30,772.39 × 11,631.52
  4. Step 4: Simplify right side
    20,512.02x = 357,929,669.73
  5. Step 5: Solve for x
    x = 357,929,669.73/20,512.02
  6. Step 6: Final answer
    x = 17,449.75

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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.