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Finding the Fourth Proportional to 34,036.80, 50,812.80 and 28,786.56

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Solution

The fourth proportional to 34,036.80, 50,812.80 and 28,786.56 is: 42,974.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,036.80 : 50,812.80 = 28,786.56 : x
  2. Step 2: Convert to fraction form
    34,036.80/50,812.80 = 28,786.56/x
  3. Step 3: Cross multiply
    34,036.80x = 50,812.80 × 28,786.56
  4. Step 4: Simplify right side
    34,036.80x = 1,462,725,715.97
  5. Step 5: Solve for x
    x = 1,462,725,715.97/34,036.80
  6. Step 6: Final answer
    x = 42,974.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.