Home / 20,288.10-30,432.15-16,832.10

Finding the Fourth Proportional to 20,288.10, 30,432.15 and 16,832.10

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Solution

The fourth proportional to 20,288.10, 30,432.15 and 16,832.10 is: 25,248.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,288.10 : 30,432.15 = 16,832.10 : x
  2. Step 2: Convert to fraction form
    20,288.10/30,432.15 = 16,832.10/x
  3. Step 3: Cross multiply
    20,288.10x = 30,432.15 × 16,832.10
  4. Step 4: Simplify right side
    20,288.10x = 512,236,992.02
  5. Step 5: Solve for x
    x = 512,236,992.02/20,288.10
  6. Step 6: Final answer
    x = 25,248.15

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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.