Home / 22,188.38-30,619.73-12,116.79

Finding the Fourth Proportional to 22,188.38, 30,619.73 and 12,116.79

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Solution

The fourth proportional to 22,188.38, 30,619.73 and 12,116.79 is: 16,721.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,188.38 : 30,619.73 = 12,116.79 : x
  2. Step 2: Convert to fraction form
    22,188.38/30,619.73 = 12,116.79/x
  3. Step 3: Cross multiply
    22,188.38x = 30,619.73 × 12,116.79
  4. Step 4: Simplify right side
    22,188.38x = 371,012,777.68
  5. Step 5: Solve for x
    x = 371,012,777.68/22,188.38
  6. Step 6: Final answer
    x = 16,721.04

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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.