Home / 21,751.44-30,016.08-12,320.52

Finding the Fourth Proportional to 21,751.44, 30,016.08 and 12,320.52

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Solution

The fourth proportional to 21,751.44, 30,016.08 and 12,320.52 is: 17,001.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,751.44 : 30,016.08 = 12,320.52 : x
  2. Step 2: Convert to fraction form
    21,751.44/30,016.08 = 12,320.52/x
  3. Step 3: Cross multiply
    21,751.44x = 30,016.08 × 12,320.52
  4. Step 4: Simplify right side
    21,751.44x = 369,813,713.96
  5. Step 5: Solve for x
    x = 369,813,713.96/21,751.44
  6. Step 6: Final answer
    x = 17,001.80

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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.