Home / 20,101.06-27,707.42-15,845.18

Finding the Fourth Proportional to 20,101.06, 27,707.42 and 15,845.18

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Solution

The fourth proportional to 20,101.06, 27,707.42 and 15,845.18 is: 21,841.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,101.06 : 27,707.42 = 15,845.18 : x
  2. Step 2: Convert to fraction form
    20,101.06/27,707.42 = 15,845.18/x
  3. Step 3: Cross multiply
    20,101.06x = 27,707.42 × 15,845.18
  4. Step 4: Simplify right side
    20,101.06x = 439,028,978.01
  5. Step 5: Solve for x
    x = 439,028,978.01/20,101.06
  6. Step 6: Final answer
    x = 21,841.09

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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.