Home / 21,340.04-31,967.19-10,634.11

Finding the Fourth Proportional to 21,340.04, 31,967.19 and 10,634.11

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Solution

The fourth proportional to 21,340.04, 31,967.19 and 10,634.11 is: 15,929.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,340.04 : 31,967.19 = 10,634.11 : x
  2. Step 2: Convert to fraction form
    21,340.04/31,967.19 = 10,634.11/x
  3. Step 3: Cross multiply
    21,340.04x = 31,967.19 × 10,634.11
  4. Step 4: Simplify right side
    21,340.04x = 339,942,455.01
  5. Step 5: Solve for x
    x = 339,942,455.01/21,340.04
  6. Step 6: Final answer
    x = 15,929.79

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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.