Home / 21,908.48-30,233.60-11,971.84

Finding the Fourth Proportional to 21,908.48, 30,233.60 and 11,971.84

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Solution

The fourth proportional to 21,908.48, 30,233.60 and 11,971.84 is: 16,521.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,908.48 : 30,233.60 = 11,971.84 : x
  2. Step 2: Convert to fraction form
    21,908.48/30,233.60 = 11,971.84/x
  3. Step 3: Cross multiply
    21,908.48x = 30,233.60 × 11,971.84
  4. Step 4: Simplify right side
    21,908.48x = 361,951,821.82
  5. Step 5: Solve for x
    x = 361,951,821.82/21,908.48
  6. Step 6: Final answer
    x = 16,521.08

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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.