Home / 21,447.20-32,135.23-15,176.12

Finding the Fourth Proportional to 21,447.20, 32,135.23 and 15,176.12

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Solution

The fourth proportional to 21,447.20, 32,135.23 and 15,176.12 is: 22,739.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,447.20 : 32,135.23 = 15,176.12 : x
  2. Step 2: Convert to fraction form
    21,447.20/32,135.23 = 15,176.12/x
  3. Step 3: Cross multiply
    21,447.20x = 32,135.23 × 15,176.12
  4. Step 4: Simplify right side
    21,447.20x = 487,688,149.11
  5. Step 5: Solve for x
    x = 487,688,149.11/21,447.20
  6. Step 6: Final answer
    x = 22,739.02

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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.