Home / 28,475.49-42,716.66-11,846.78

Finding the Fourth Proportional to 28,475.49, 42,716.66 and 11,846.78

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Solution

The fourth proportional to 28,475.49, 42,716.66 and 11,846.78 is: 17,771.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,475.49 : 42,716.66 = 11,846.78 : x
  2. Step 2: Convert to fraction form
    28,475.49/42,716.66 = 11,846.78/x
  3. Step 3: Cross multiply
    28,475.49x = 42,716.66 × 11,846.78
  4. Step 4: Simplify right side
    28,475.49x = 506,054,600.54
  5. Step 5: Solve for x
    x = 506,054,600.54/28,475.49
  6. Step 6: Final answer
    x = 17,771.59

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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.