Home / 21,599.05-32,403.12-12,243.55

Finding the Fourth Proportional to 21,599.05, 32,403.12 and 12,243.55

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Solution

The fourth proportional to 21,599.05, 32,403.12 and 12,243.55 is: 18,367.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,599.05 : 32,403.12 = 12,243.55 : x
  2. Step 2: Convert to fraction form
    21,599.05/32,403.12 = 12,243.55/x
  3. Step 3: Cross multiply
    21,599.05x = 32,403.12 × 12,243.55
  4. Step 4: Simplify right side
    21,599.05x = 396,729,219.88
  5. Step 5: Solve for x
    x = 396,729,219.88/21,599.05
  6. Step 6: Final answer
    x = 18,367.90

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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.