Home / 19,943.81-27,521.33-10,991.28

Finding the Fourth Proportional to 19,943.81, 27,521.33 and 10,991.28

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Solution

The fourth proportional to 19,943.81, 27,521.33 and 10,991.28 is: 15,167.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,943.81 : 27,521.33 = 10,991.28 : x
  2. Step 2: Convert to fraction form
    19,943.81/27,521.33 = 10,991.28/x
  3. Step 3: Cross multiply
    19,943.81x = 27,521.33 × 10,991.28
  4. Step 4: Simplify right side
    19,943.81x = 302,494,644.00
  5. Step 5: Solve for x
    x = 302,494,644.00/19,943.81
  6. Step 6: Final answer
    x = 15,167.34

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.