Home / 21,982.48-30,335.86-11,910.92

Finding the Fourth Proportional to 21,982.48, 30,335.86 and 11,910.92

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Solution

The fourth proportional to 21,982.48, 30,335.86 and 11,910.92 is: 16,437.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,982.48 : 30,335.86 = 11,910.92 : x
  2. Step 2: Convert to fraction form
    21,982.48/30,335.86 = 11,910.92/x
  3. Step 3: Cross multiply
    21,982.48x = 30,335.86 × 11,910.92
  4. Step 4: Simplify right side
    21,982.48x = 361,328,001.59
  5. Step 5: Solve for x
    x = 361,328,001.59/21,982.48
  6. Step 6: Final answer
    x = 16,437.09

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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.