Home / 21,632.20-32,442.90-8,302.30

Finding the Fourth Proportional to 21,632.20, 32,442.90 and 8,302.30

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Solution

The fourth proportional to 21,632.20, 32,442.90 and 8,302.30 is: 12,451.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,632.20 : 32,442.90 = 8,302.30 : x
  2. Step 2: Convert to fraction form
    21,632.20/32,442.90 = 8,302.30/x
  3. Step 3: Cross multiply
    21,632.20x = 32,442.90 × 8,302.30
  4. Step 4: Simplify right side
    21,632.20x = 269,350,688.67
  5. Step 5: Solve for x
    x = 269,350,688.67/21,632.20
  6. Step 6: Final answer
    x = 12,451.38

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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.