Home / 39,786.59-59,667.68-13,127.66

Finding the Fourth Proportional to 39,786.59, 59,667.68 and 13,127.66

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Solution

The fourth proportional to 39,786.59, 59,667.68 and 13,127.66 is: 19,687.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,786.59 : 59,667.68 = 13,127.66 : x
  2. Step 2: Convert to fraction form
    39,786.59/59,667.68 = 13,127.66/x
  3. Step 3: Cross multiply
    39,786.59x = 59,667.68 × 13,127.66
  4. Step 4: Simplify right side
    39,786.59x = 783,296,652.05
  5. Step 5: Solve for x
    x = 783,296,652.05/39,786.59
  6. Step 6: Final answer
    x = 19,687.46

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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.