Home / 22,051.30-30,430.82-11,979.73

Finding the Fourth Proportional to 22,051.30, 30,430.82 and 11,979.73

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Solution

The fourth proportional to 22,051.30, 30,430.82 and 11,979.73 is: 16,532.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,051.30 : 30,430.82 = 11,979.73 : x
  2. Step 2: Convert to fraction form
    22,051.30/30,430.82 = 11,979.73/x
  3. Step 3: Cross multiply
    22,051.30x = 30,430.82 × 11,979.73
  4. Step 4: Simplify right side
    22,051.30x = 364,552,871.30
  5. Step 5: Solve for x
    x = 364,552,871.30/22,051.30
  6. Step 6: Final answer
    x = 16,532.04

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Double scale
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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.