Home / 20,010.47-27,613.54-11,057.78

Finding the Fourth Proportional to 20,010.47, 27,613.54 and 11,057.78

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Solution

The fourth proportional to 20,010.47, 27,613.54 and 11,057.78 is: 15,259.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,010.47 : 27,613.54 = 11,057.78 : x
  2. Step 2: Convert to fraction form
    20,010.47/27,613.54 = 11,057.78/x
  3. Step 3: Cross multiply
    20,010.47x = 27,613.54 × 11,057.78
  4. Step 4: Simplify right side
    20,010.47x = 305,344,312.27
  5. Step 5: Solve for x
    x = 305,344,312.27/20,010.47
  6. Step 6: Final answer
    x = 15,259.23

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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.