Home / 21,986.91-32,972.13-8,834.81

Finding the Fourth Proportional to 21,986.91, 32,972.13 and 8,834.81

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Solution

The fourth proportional to 21,986.91, 32,972.13 and 8,834.81 is: 13,248.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,986.91 : 32,972.13 = 8,834.81 : x
  2. Step 2: Convert to fraction form
    21,986.91/32,972.13 = 8,834.81/x
  3. Step 3: Cross multiply
    21,986.91x = 32,972.13 × 8,834.81
  4. Step 4: Simplify right side
    21,986.91x = 291,302,338.98
  5. Step 5: Solve for x
    x = 291,302,338.98/21,986.91
  6. Step 6: Final answer
    x = 13,248.90

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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.