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Finding the Fourth Proportional to 21,602.24, 32,404.05 and 6,811.29

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Solution

The fourth proportional to 21,602.24, 32,404.05 and 6,811.29 is: 10,217.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,602.24 : 32,404.05 = 6,811.29 : x
  2. Step 2: Convert to fraction form
    21,602.24/32,404.05 = 6,811.29/x
  3. Step 3: Cross multiply
    21,602.24x = 32,404.05 × 6,811.29
  4. Step 4: Simplify right side
    21,602.24x = 220,713,381.72
  5. Step 5: Solve for x
    x = 220,713,381.72/21,602.24
  6. Step 6: Final answer
    x = 10,217.15

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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.