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Finding the Fourth Proportional to 21,853.70, 32,775.68 and 8,527.04

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Solution

The fourth proportional to 21,853.70, 32,775.68 and 8,527.04 is: 12,788.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,853.70 : 32,775.68 = 8,527.04 : x
  2. Step 2: Convert to fraction form
    21,853.70/32,775.68 = 8,527.04/x
  3. Step 3: Cross multiply
    21,853.70x = 32,775.68 × 8,527.04
  4. Step 4: Simplify right side
    21,853.70x = 279,479,534.39
  5. Step 5: Solve for x
    x = 279,479,534.39/21,853.70
  6. Step 6: Final answer
    x = 12,788.66

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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.