Home / 21,904.47-30,228.19-11,832.91

Finding the Fourth Proportional to 21,904.47, 30,228.19 and 11,832.91

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Solution

The fourth proportional to 21,904.47, 30,228.19 and 11,832.91 is: 16,329.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,904.47 : 30,228.19 = 11,832.91 : x
  2. Step 2: Convert to fraction form
    21,904.47/30,228.19 = 11,832.91/x
  3. Step 3: Cross multiply
    21,904.47x = 30,228.19 × 11,832.91
  4. Step 4: Simplify right side
    21,904.47x = 357,687,481.32
  5. Step 5: Solve for x
    x = 357,687,481.32/21,904.47
  6. Step 6: Final answer
    x = 16,329.43

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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.