Home / 20,269.98-27,969.03-11,316.11

Finding the Fourth Proportional to 20,269.98, 27,969.03 and 11,316.11

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Solution

The fourth proportional to 20,269.98, 27,969.03 and 11,316.11 is: 15,614.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,269.98 : 27,969.03 = 11,316.11 : x
  2. Step 2: Convert to fraction form
    20,269.98/27,969.03 = 11,316.11/x
  3. Step 3: Cross multiply
    20,269.98x = 27,969.03 × 11,316.11
  4. Step 4: Simplify right side
    20,269.98x = 316,500,480.23
  5. Step 5: Solve for x
    x = 316,500,480.23/20,269.98
  6. Step 6: Final answer
    x = 15,614.25

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1.5x scale

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.