Home / 21,445.20-32,168.04-8,967.12

Finding the Fourth Proportional to 21,445.20, 32,168.04 and 8,967.12

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Solution

The fourth proportional to 21,445.20, 32,168.04 and 8,967.12 is: 13,450.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,445.20 : 32,168.04 = 8,967.12 : x
  2. Step 2: Convert to fraction form
    21,445.20/32,168.04 = 8,967.12/x
  3. Step 3: Cross multiply
    21,445.20x = 32,168.04 × 8,967.12
  4. Step 4: Simplify right side
    21,445.20x = 288,454,674.84
  5. Step 5: Solve for x
    x = 288,454,674.84/21,445.20
  6. Step 6: Final answer
    x = 13,450.78

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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.