Home / 21,995.46-32,993.55-12,132.90

Finding the Fourth Proportional to 21,995.46, 32,993.55 and 12,132.90

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Solution

The fourth proportional to 21,995.46, 32,993.55 and 12,132.90 is: 18,199.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,995.46 : 32,993.55 = 12,132.90 : x
  2. Step 2: Convert to fraction form
    21,995.46/32,993.55 = 12,132.90/x
  3. Step 3: Cross multiply
    21,995.46x = 32,993.55 × 12,132.90
  4. Step 4: Simplify right side
    21,995.46x = 400,307,442.80
  5. Step 5: Solve for x
    x = 400,307,442.80/21,995.46
  6. Step 6: Final answer
    x = 18,199.55

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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.