Home / 20,015.09-27,606.52-15,291.17

Finding the Fourth Proportional to 20,015.09, 27,606.52 and 15,291.17

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Solution

The fourth proportional to 20,015.09, 27,606.52 and 15,291.17 is: 21,090.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,015.09 : 27,606.52 = 15,291.17 : x
  2. Step 2: Convert to fraction form
    20,015.09/27,606.52 = 15,291.17/x
  3. Step 3: Cross multiply
    20,015.09x = 27,606.52 × 15,291.17
  4. Step 4: Simplify right side
    20,015.09x = 422,135,990.43
  5. Step 5: Solve for x
    x = 422,135,990.43/20,015.09
  6. Step 6: Final answer
    x = 21,090.89

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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.