Home / 21,156.13-29,195.82-11,595.83

Finding the Fourth Proportional to 21,156.13, 29,195.82 and 11,595.83

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Solution

The fourth proportional to 21,156.13, 29,195.82 and 11,595.83 is: 16,002.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,156.13 : 29,195.82 = 11,595.83 : x
  2. Step 2: Convert to fraction form
    21,156.13/29,195.82 = 11,595.83/x
  3. Step 3: Cross multiply
    21,156.13x = 29,195.82 × 11,595.83
  4. Step 4: Simplify right side
    21,156.13x = 338,549,586.84
  5. Step 5: Solve for x
    x = 338,549,586.84/21,156.13
  6. Step 6: Final answer
    x = 16,002.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.