Home / 20,145.93-27,801.18-11,193.24

Finding the Fourth Proportional to 20,145.93, 27,801.18 and 11,193.24

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Solution

The fourth proportional to 20,145.93, 27,801.18 and 11,193.24 is: 15,446.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,145.93 : 27,801.18 = 11,193.24 : x
  2. Step 2: Convert to fraction form
    20,145.93/27,801.18 = 11,193.24/x
  3. Step 3: Cross multiply
    20,145.93x = 27,801.18 × 11,193.24
  4. Step 4: Simplify right side
    20,145.93x = 311,185,085.05
  5. Step 5: Solve for x
    x = 311,185,085.05/20,145.93
  6. Step 6: Final answer
    x = 15,446.55

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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.