Home / 39,489.05-59,216.29-11,781.53

Finding the Fourth Proportional to 39,489.05, 59,216.29 and 11,781.53

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Solution

The fourth proportional to 39,489.05, 59,216.29 and 11,781.53 is: 17,667.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,489.05 : 59,216.29 = 11,781.53 : x
  2. Step 2: Convert to fraction form
    39,489.05/59,216.29 = 11,781.53/x
  3. Step 3: Cross multiply
    39,489.05x = 59,216.29 × 11,781.53
  4. Step 4: Simplify right side
    39,489.05x = 697,658,497.12
  5. Step 5: Solve for x
    x = 697,658,497.12/39,489.05
  6. Step 6: Final answer
    x = 17,667.14

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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.