Home / 39,191.90-58,731.81-31,318.37

Finding the Fourth Proportional to 39,191.90, 58,731.81 and 31,318.37

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Solution

The fourth proportional to 39,191.90, 58,731.81 and 31,318.37 is: 46,932.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,191.90 : 58,731.81 = 31,318.37 : x
  2. Step 2: Convert to fraction form
    39,191.90/58,731.81 = 31,318.37/x
  3. Step 3: Cross multiply
    39,191.90x = 58,731.81 × 31,318.37
  4. Step 4: Simplify right side
    39,191.90x = 1,839,384,262.69
  5. Step 5: Solve for x
    x = 1,839,384,262.69/39,191.90
  6. Step 6: Final answer
    x = 46,932.76

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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.