Home / 39,969.84-59,954.49-10,387.56

Finding the Fourth Proportional to 39,969.84, 59,954.49 and 10,387.56

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Solution

The fourth proportional to 39,969.84, 59,954.49 and 10,387.56 is: 15,581.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,969.84 : 59,954.49 = 10,387.56 : x
  2. Step 2: Convert to fraction form
    39,969.84/59,954.49 = 10,387.56/x
  3. Step 3: Cross multiply
    39,969.84x = 59,954.49 × 10,387.56
  4. Step 4: Simplify right side
    39,969.84x = 622,780,862.14
  5. Step 5: Solve for x
    x = 622,780,862.14/39,969.84
  6. Step 6: Final answer
    x = 15,581.27

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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.