Home / 20,062.72-27,686.21-11,110.03

Finding the Fourth Proportional to 20,062.72, 27,686.21 and 11,110.03

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Solution

The fourth proportional to 20,062.72, 27,686.21 and 11,110.03 is: 15,331.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,062.72 : 27,686.21 = 11,110.03 : x
  2. Step 2: Convert to fraction form
    20,062.72/27,686.21 = 11,110.03/x
  3. Step 3: Cross multiply
    20,062.72x = 27,686.21 × 11,110.03
  4. Step 4: Simplify right side
    20,062.72x = 307,594,623.69
  5. Step 5: Solve for x
    x = 307,594,623.69/20,062.72
  6. Step 6: Final answer
    x = 15,331.65

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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.