Home / 20,021.66-27,627.63-11,066.90

Finding the Fourth Proportional to 20,021.66, 27,627.63 and 11,066.90

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Solution

The fourth proportional to 20,021.66, 27,627.63 and 11,066.90 is: 15,271.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,021.66 : 27,627.63 = 11,066.90 : x
  2. Step 2: Convert to fraction form
    20,021.66/27,627.63 = 11,066.90/x
  3. Step 3: Cross multiply
    20,021.66x = 27,627.63 × 11,066.90
  4. Step 4: Simplify right side
    20,021.66x = 305,752,218.45
  5. Step 5: Solve for x
    x = 305,752,218.45/20,021.66
  6. Step 6: Final answer
    x = 15,271.07

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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.