Home / 22,370.55-30,872.19-12,811.92

Finding the Fourth Proportional to 22,370.55, 30,872.19 and 12,811.92

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Solution

The fourth proportional to 22,370.55, 30,872.19 and 12,811.92 is: 17,680.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,370.55 : 30,872.19 = 12,811.92 : x
  2. Step 2: Convert to fraction form
    22,370.55/30,872.19 = 12,811.92/x
  3. Step 3: Cross multiply
    22,370.55x = 30,872.19 × 12,811.92
  4. Step 4: Simplify right side
    22,370.55x = 395,532,028.50
  5. Step 5: Solve for x
    x = 395,532,028.50/22,370.55
  6. Step 6: Final answer
    x = 17,680.93

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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.