Home / 38,379.71-57,571.61-12,086.51

Finding the Fourth Proportional to 38,379.71, 57,571.61 and 12,086.51

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Solution

The fourth proportional to 38,379.71, 57,571.61 and 12,086.51 is: 18,130.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,379.71 : 57,571.61 = 12,086.51 : x
  2. Step 2: Convert to fraction form
    38,379.71/57,571.61 = 12,086.51/x
  3. Step 3: Cross multiply
    38,379.71x = 57,571.61 × 12,086.51
  4. Step 4: Simplify right side
    38,379.71x = 695,839,491.69
  5. Step 5: Solve for x
    x = 695,839,491.69/38,379.71
  6. Step 6: Final answer
    x = 18,130.40

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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.