Home / 22,168.89-30,601.80-15,099.21

Finding the Fourth Proportional to 22,168.89, 30,601.80 and 15,099.21

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Solution

The fourth proportional to 22,168.89, 30,601.80 and 15,099.21 is: 20,842.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,168.89 : 30,601.80 = 15,099.21 : x
  2. Step 2: Convert to fraction form
    22,168.89/30,601.80 = 15,099.21/x
  3. Step 3: Cross multiply
    22,168.89x = 30,601.80 × 15,099.21
  4. Step 4: Simplify right side
    22,168.89x = 462,063,004.58
  5. Step 5: Solve for x
    x = 462,063,004.58/22,168.89
  6. Step 6: Final answer
    x = 20,842.86

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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.