Home / 21,868.11-32,811.39-10,774.89

Finding the Fourth Proportional to 21,868.11, 32,811.39 and 10,774.89

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Solution

The fourth proportional to 21,868.11, 32,811.39 and 10,774.89 is: 16,166.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,868.11 : 32,811.39 = 10,774.89 : x
  2. Step 2: Convert to fraction form
    21,868.11/32,811.39 = 10,774.89/x
  3. Step 3: Cross multiply
    21,868.11x = 32,811.39 × 10,774.89
  4. Step 4: Simplify right side
    21,868.11x = 353,539,118.00
  5. Step 5: Solve for x
    x = 353,539,118.00/21,868.11
  6. Step 6: Final answer
    x = 16,166.88

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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.