Home / 21,906.20-32,883.84-8,767.72

Finding the Fourth Proportional to 21,906.20, 32,883.84 and 8,767.72

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Solution

The fourth proportional to 21,906.20, 32,883.84 and 8,767.72 is: 13,161.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,906.20 : 32,883.84 = 8,767.72 : x
  2. Step 2: Convert to fraction form
    21,906.20/32,883.84 = 8,767.72/x
  3. Step 3: Cross multiply
    21,906.20x = 32,883.84 × 8,767.72
  4. Step 4: Simplify right side
    21,906.20x = 288,316,301.64
  5. Step 5: Solve for x
    x = 288,316,301.64/21,906.20
  6. Step 6: Final answer
    x = 13,161.40

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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.