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Finding the Fourth Proportional to 21,483.65, 32,227.01 and 8,991.10

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Solution

The fourth proportional to 21,483.65, 32,227.01 and 8,991.10 is: 13,487.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,483.65 : 32,227.01 = 8,991.10 : x
  2. Step 2: Convert to fraction form
    21,483.65/32,227.01 = 8,991.10/x
  3. Step 3: Cross multiply
    21,483.65x = 32,227.01 × 8,991.10
  4. Step 4: Simplify right side
    21,483.65x = 289,756,269.61
  5. Step 5: Solve for x
    x = 289,756,269.61/21,483.65
  6. Step 6: Final answer
    x = 13,487.29

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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.