Home / 21,950.38-30,305.37-15,233.86

Finding the Fourth Proportional to 21,950.38, 30,305.37 and 15,233.86

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Solution

The fourth proportional to 21,950.38, 30,305.37 and 15,233.86 is: 21,032.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,950.38 : 30,305.37 = 15,233.86 : x
  2. Step 2: Convert to fraction form
    21,950.38/30,305.37 = 15,233.86/x
  3. Step 3: Cross multiply
    21,950.38x = 30,305.37 × 15,233.86
  4. Step 4: Simplify right side
    21,950.38x = 461,667,763.83
  5. Step 5: Solve for x
    x = 461,667,763.83/21,950.38
  6. Step 6: Final answer
    x = 21,032.34

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1.5x scale

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.