Home / 19,932.12-29,916.54-10,078.34

Finding the Fourth Proportional to 19,932.12, 29,916.54 and 10,078.34

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Solution

The fourth proportional to 19,932.12, 29,916.54 and 10,078.34 is: 15,126.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,932.12 : 29,916.54 = 10,078.34 : x
  2. Step 2: Convert to fraction form
    19,932.12/29,916.54 = 10,078.34/x
  3. Step 3: Cross multiply
    19,932.12x = 29,916.54 × 10,078.34
  4. Step 4: Simplify right side
    19,932.12x = 301,508,912.16
  5. Step 5: Solve for x
    x = 301,508,912.16/19,932.12
  6. Step 6: Final answer
    x = 15,126.79

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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.