Home / 22,191.80-30,624.93-12,120.54

Finding the Fourth Proportional to 22,191.80, 30,624.93 and 12,120.54

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Solution

The fourth proportional to 22,191.80, 30,624.93 and 12,120.54 is: 16,726.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,191.80 : 30,624.93 = 12,120.54 : x
  2. Step 2: Convert to fraction form
    22,191.80/30,624.93 = 12,120.54/x
  3. Step 3: Cross multiply
    22,191.80x = 30,624.93 × 12,120.54
  4. Step 4: Simplify right side
    22,191.80x = 371,190,689.06
  5. Step 5: Solve for x
    x = 371,190,689.06/22,191.80
  6. Step 6: Final answer
    x = 16,726.48

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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.