Home / 22,143.18-33,220.66-8,988.38

Finding the Fourth Proportional to 22,143.18, 33,220.66 and 8,988.38

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Solution

The fourth proportional to 22,143.18, 33,220.66 and 8,988.38 is: 13,484.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,143.18 : 33,220.66 = 8,988.38 : x
  2. Step 2: Convert to fraction form
    22,143.18/33,220.66 = 8,988.38/x
  3. Step 3: Cross multiply
    22,143.18x = 33,220.66 × 8,988.38
  4. Step 4: Simplify right side
    22,143.18x = 298,599,915.93
  5. Step 5: Solve for x
    x = 298,599,915.93/22,143.18
  6. Step 6: Final answer
    x = 13,484.96

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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.