Home / 19,222.70-28,838.03-8,129.48

Finding the Fourth Proportional to 19,222.70, 28,838.03 and 8,129.48

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Solution

The fourth proportional to 19,222.70, 28,838.03 and 8,129.48 is: 12,195.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,222.70 : 28,838.03 = 8,129.48 : x
  2. Step 2: Convert to fraction form
    19,222.70/28,838.03 = 8,129.48/x
  3. Step 3: Cross multiply
    19,222.70x = 28,838.03 × 8,129.48
  4. Step 4: Simplify right side
    19,222.70x = 234,438,003.29
  5. Step 5: Solve for x
    x = 234,438,003.29/19,222.70
  6. Step 6: Final answer
    x = 12,195.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.