Home / 20,862.52-31,293.78-5,067.45

Finding the Fourth Proportional to 20,862.52, 31,293.78 and 5,067.45

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Solution

The fourth proportional to 20,862.52, 31,293.78 and 5,067.45 is: 7,601.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,862.52 : 31,293.78 = 5,067.45 : x
  2. Step 2: Convert to fraction form
    20,862.52/31,293.78 = 5,067.45/x
  3. Step 3: Cross multiply
    20,862.52x = 31,293.78 × 5,067.45
  4. Step 4: Simplify right side
    20,862.52x = 158,579,646.46
  5. Step 5: Solve for x
    x = 158,579,646.46/20,862.52
  6. Step 6: Final answer
    x = 7,601.18

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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.