Home / 39,371.11-59,090.78-20,664.36

Finding the Fourth Proportional to 39,371.11, 59,090.78 and 20,664.36

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Solution

The fourth proportional to 39,371.11, 59,090.78 and 20,664.36 is: 31,014.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,371.11 : 59,090.78 = 20,664.36 : x
  2. Step 2: Convert to fraction form
    39,371.11/59,090.78 = 20,664.36/x
  3. Step 3: Cross multiply
    39,371.11x = 59,090.78 × 20,664.36
  4. Step 4: Simplify right side
    39,371.11x = 1,221,073,202.26
  5. Step 5: Solve for x
    x = 1,221,073,202.26/39,371.11
  6. Step 6: Final answer
    x = 31,014.45

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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.