Home / 22,188.73-30,619.30-12,115.22

Finding the Fourth Proportional to 22,188.73, 30,619.30 and 12,115.22

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Solution

The fourth proportional to 22,188.73, 30,619.30 and 12,115.22 is: 16,718.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,188.73 : 30,619.30 = 12,115.22 : x
  2. Step 2: Convert to fraction form
    22,188.73/30,619.30 = 12,115.22/x
  3. Step 3: Cross multiply
    22,188.73x = 30,619.30 × 12,115.22
  4. Step 4: Simplify right side
    22,188.73x = 370,959,602.01
  5. Step 5: Solve for x
    x = 370,959,602.01/22,188.73
  6. Step 6: Final answer
    x = 16,718.38

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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.