Home / 20,219.35-27,904.76-11,268.31

Finding the Fourth Proportional to 20,219.35, 27,904.76 and 11,268.31

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Solution

The fourth proportional to 20,219.35, 27,904.76 and 11,268.31 is: 15,551.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,219.35 : 27,904.76 = 11,268.31 : x
  2. Step 2: Convert to fraction form
    20,219.35/27,904.76 = 11,268.31/x
  3. Step 3: Cross multiply
    20,219.35x = 27,904.76 × 11,268.31
  4. Step 4: Simplify right side
    20,219.35x = 314,439,486.16
  5. Step 5: Solve for x
    x = 314,439,486.16/20,219.35
  6. Step 6: Final answer
    x = 15,551.41

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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.