Home / 39,918.18-59,883.42-13,616.79

Finding the Fourth Proportional to 39,918.18, 59,883.42 and 13,616.79

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Solution

The fourth proportional to 39,918.18, 59,883.42 and 13,616.79 is: 20,427.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,918.18 : 59,883.42 = 13,616.79 : x
  2. Step 2: Convert to fraction form
    39,918.18/59,883.42 = 13,616.79/x
  3. Step 3: Cross multiply
    39,918.18x = 59,883.42 × 13,616.79
  4. Step 4: Simplify right side
    39,918.18x = 815,419,954.62
  5. Step 5: Solve for x
    x = 815,419,954.62/39,918.18
  6. Step 6: Final answer
    x = 20,427.28

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1.5x scale

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.