Home / 34,143.05-51,212.51-12,791.55

Finding the Fourth Proportional to 34,143.05, 51,212.51 and 12,791.55

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Solution

The fourth proportional to 34,143.05, 51,212.51 and 12,791.55 is: 19,186.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,143.05 : 51,212.51 = 12,791.55 : x
  2. Step 2: Convert to fraction form
    34,143.05/51,212.51 = 12,791.55/x
  3. Step 3: Cross multiply
    34,143.05x = 51,212.51 × 12,791.55
  4. Step 4: Simplify right side
    34,143.05x = 655,087,318.33
  5. Step 5: Solve for x
    x = 655,087,318.33/34,143.05
  6. Step 6: Final answer
    x = 19,186.55

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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.