Home / 42,022.69-63,034.03-15,739.81

Finding the Fourth Proportional to 42,022.69, 63,034.03 and 15,739.81

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Solution

The fourth proportional to 42,022.69, 63,034.03 and 15,739.81 is: 23,609.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,022.69 : 63,034.03 = 15,739.81 : x
  2. Step 2: Convert to fraction form
    42,022.69/63,034.03 = 15,739.81/x
  3. Step 3: Cross multiply
    42,022.69x = 63,034.03 × 15,739.81
  4. Step 4: Simplify right side
    42,022.69x = 992,143,517.82
  5. Step 5: Solve for x
    x = 992,143,517.82/42,022.69
  6. Step 6: Final answer
    x = 23,609.71

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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.