Home / 39,786.81-59,673.50-13,124.55

Finding the Fourth Proportional to 39,786.81, 59,673.50 and 13,124.55

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Solution

The fourth proportional to 39,786.81, 59,673.50 and 13,124.55 is: 19,684.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,786.81 : 59,673.50 = 13,124.55 : x
  2. Step 2: Convert to fraction form
    39,786.81/59,673.50 = 13,124.55/x
  3. Step 3: Cross multiply
    39,786.81x = 59,673.50 × 13,124.55
  4. Step 4: Simplify right side
    39,786.81x = 783,187,768.80
  5. Step 5: Solve for x
    x = 783,187,768.80/39,786.81
  6. Step 6: Final answer
    x = 19,684.61

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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.