Home / 20,219.10-27,904.41-11,268.06

Finding the Fourth Proportional to 20,219.10, 27,904.41 and 11,268.06

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Solution

The fourth proportional to 20,219.10, 27,904.41 and 11,268.06 is: 15,551.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,219.10 : 27,904.41 = 11,268.06 : x
  2. Step 2: Convert to fraction form
    20,219.10/27,904.41 = 11,268.06/x
  3. Step 3: Cross multiply
    20,219.10x = 27,904.41 × 11,268.06
  4. Step 4: Simplify right side
    20,219.10x = 314,428,566.14
  5. Step 5: Solve for x
    x = 314,428,566.14/20,219.10
  6. Step 6: Final answer
    x = 15,551.07

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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.