Home / 28,766.75-43,156.01-12,126.79

Finding the Fourth Proportional to 28,766.75, 43,156.01 and 12,126.79

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Solution

The fourth proportional to 28,766.75, 43,156.01 and 12,126.79 is: 18,192.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,766.75 : 43,156.01 = 12,126.79 : x
  2. Step 2: Convert to fraction form
    28,766.75/43,156.01 = 12,126.79/x
  3. Step 3: Cross multiply
    28,766.75x = 43,156.01 × 12,126.79
  4. Step 4: Simplify right side
    28,766.75x = 523,343,792.93
  5. Step 5: Solve for x
    x = 523,343,792.93/28,766.75
  6. Step 6: Final answer
    x = 18,192.66

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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.