Home / 21,023.28-29,012.04-11,592

Finding the Fourth Proportional to 21,023.28, 29,012.04 and 11,592

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Solution

The fourth proportional to 21,023.28, 29,012.04 and 11,592 is: 15,996.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,023.28 : 29,012.04 = 11,592 : x
  2. Step 2: Convert to fraction form
    21,023.28/29,012.04 = 11,592/x
  3. Step 3: Cross multiply
    21,023.28x = 29,012.04 × 11,592
  4. Step 4: Simplify right side
    21,023.28x = 336,307,567.68
  5. Step 5: Solve for x
    x = 336,307,567.68/21,023.28
  6. Step 6: Final answer
    x = 15,996.91

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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.