Home / 20,009.75-27,613.13-11,057.63

Finding the Fourth Proportional to 20,009.75, 27,613.13 and 11,057.63

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Solution

The fourth proportional to 20,009.75, 27,613.13 and 11,057.63 is: 15,259.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,009.75 : 27,613.13 = 11,057.63 : x
  2. Step 2: Convert to fraction form
    20,009.75/27,613.13 = 11,057.63/x
  3. Step 3: Cross multiply
    20,009.75x = 27,613.13 × 11,057.63
  4. Step 4: Simplify right side
    20,009.75x = 305,335,581.33
  5. Step 5: Solve for x
    x = 305,335,581.33/20,009.75
  6. Step 6: Final answer
    x = 15,259.34

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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.