Home / 20,219.56-27,900.74-11,266.36

Finding the Fourth Proportional to 20,219.56, 27,900.74 and 11,266.36

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Solution

The fourth proportional to 20,219.56, 27,900.74 and 11,266.36 is: 15,546.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,219.56 : 27,900.74 = 11,266.36 : x
  2. Step 2: Convert to fraction form
    20,219.56/27,900.74 = 11,266.36/x
  3. Step 3: Cross multiply
    20,219.56x = 27,900.74 × 11,266.36
  4. Step 4: Simplify right side
    20,219.56x = 314,339,781.11
  5. Step 5: Solve for x
    x = 314,339,781.11/20,219.56
  6. Step 6: Final answer
    x = 15,546.32

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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.