Home / 20,035.11-27,672.12-15,021.21

Finding the Fourth Proportional to 20,035.11, 27,672.12 and 15,021.21

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Solution

The fourth proportional to 20,035.11, 27,672.12 and 15,021.21 is: 20,747.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,035.11 : 27,672.12 = 15,021.21 : x
  2. Step 2: Convert to fraction form
    20,035.11/27,672.12 = 15,021.21/x
  3. Step 3: Cross multiply
    20,035.11x = 27,672.12 × 15,021.21
  4. Step 4: Simplify right side
    20,035.11x = 415,668,725.67
  5. Step 5: Solve for x
    x = 415,668,725.67/20,035.11
  6. Step 6: Final answer
    x = 20,747.01

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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.