Home / 20,113.01-27,756.17-11,161.34

Finding the Fourth Proportional to 20,113.01, 27,756.17 and 11,161.34

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Solution

The fourth proportional to 20,113.01, 27,756.17 and 11,161.34 is: 15,402.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,113.01 : 27,756.17 = 11,161.34 : x
  2. Step 2: Convert to fraction form
    20,113.01/27,756.17 = 11,161.34/x
  3. Step 3: Cross multiply
    20,113.01x = 27,756.17 × 11,161.34
  4. Step 4: Simplify right side
    20,113.01x = 309,796,157.95
  5. Step 5: Solve for x
    x = 309,796,157.95/20,113.01
  6. Step 6: Final answer
    x = 15,402.78

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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.