Home / 21,274.13-29,358.50-11,842.89

Finding the Fourth Proportional to 21,274.13, 29,358.50 and 11,842.89

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Solution

The fourth proportional to 21,274.13, 29,358.50 and 11,842.89 is: 16,343.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,274.13 : 29,358.50 = 11,842.89 : x
  2. Step 2: Convert to fraction form
    21,274.13/29,358.50 = 11,842.89/x
  3. Step 3: Cross multiply
    21,274.13x = 29,358.50 × 11,842.89
  4. Step 4: Simplify right side
    21,274.13x = 347,689,426.85
  5. Step 5: Solve for x
    x = 347,689,426.85/21,274.13
  6. Step 6: Final answer
    x = 16,343.30

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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.