Home / 21,449.08-32,154.59-8,112.75

Finding the Fourth Proportional to 21,449.08, 32,154.59 and 8,112.75

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Solution

The fourth proportional to 21,449.08, 32,154.59 and 8,112.75 is: 12,161.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,449.08 : 32,154.59 = 8,112.75 : x
  2. Step 2: Convert to fraction form
    21,449.08/32,154.59 = 8,112.75/x
  3. Step 3: Cross multiply
    21,449.08x = 32,154.59 × 8,112.75
  4. Step 4: Simplify right side
    21,449.08x = 260,861,948.69
  5. Step 5: Solve for x
    x = 260,861,948.69/21,449.08
  6. Step 6: Final answer
    x = 12,161.92

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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.