Home / 20,268.41-27,969.27-11,316.49

Finding the Fourth Proportional to 20,268.41, 27,969.27 and 11,316.49

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Solution

The fourth proportional to 20,268.41, 27,969.27 and 11,316.49 is: 15,616.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,268.41 : 27,969.27 = 11,316.49 : x
  2. Step 2: Convert to fraction form
    20,268.41/27,969.27 = 11,316.49/x
  3. Step 3: Cross multiply
    20,268.41x = 27,969.27 × 11,316.49
  4. Step 4: Simplify right side
    20,268.41x = 316,513,964.26
  5. Step 5: Solve for x
    x = 316,513,964.26/20,268.41
  6. Step 6: Final answer
    x = 15,616.12

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Why These Related Problems?

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