Home / 20,073.40-27,701.49-11,121.03

Finding the Fourth Proportional to 20,073.40, 27,701.49 and 11,121.03

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Solution

The fourth proportional to 20,073.40, 27,701.49 and 11,121.03 is: 15,347.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,073.40 : 27,701.49 = 11,121.03 : x
  2. Step 2: Convert to fraction form
    20,073.40/27,701.49 = 11,121.03/x
  3. Step 3: Cross multiply
    20,073.40x = 27,701.49 × 11,121.03
  4. Step 4: Simplify right side
    20,073.40x = 308,069,143.04
  5. Step 5: Solve for x
    x = 308,069,143.04/20,073.40
  6. Step 6: Final answer
    x = 15,347.13

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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.