Home / 20,219.59-27,902.73-11,268.10

Finding the Fourth Proportional to 20,219.59, 27,902.73 and 11,268.10

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Solution

The fourth proportional to 20,219.59, 27,902.73 and 11,268.10 is: 15,549.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,219.59 : 27,902.73 = 11,268.10 : x
  2. Step 2: Convert to fraction form
    20,219.59/27,902.73 = 11,268.10/x
  3. Step 3: Cross multiply
    20,219.59x = 27,902.73 × 11,268.10
  4. Step 4: Simplify right side
    20,219.59x = 314,410,751.91
  5. Step 5: Solve for x
    x = 314,410,751.91/20,219.59
  6. Step 6: Final answer
    x = 15,549.81

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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.