Home / 21,245.84-29,318.05-11,814.20

Finding the Fourth Proportional to 21,245.84, 29,318.05 and 11,814.20

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Solution

The fourth proportional to 21,245.84, 29,318.05 and 11,814.20 is: 16,302.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,245.84 : 29,318.05 = 11,814.20 : x
  2. Step 2: Convert to fraction form
    21,245.84/29,318.05 = 11,814.20/x
  3. Step 3: Cross multiply
    21,245.84x = 29,318.05 × 11,814.20
  4. Step 4: Simplify right side
    21,245.84x = 346,369,306.31
  5. Step 5: Solve for x
    x = 346,369,306.31/21,245.84
  6. Step 6: Final answer
    x = 16,302.92

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Similar ratio
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1.5x scale

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.