Home / 27,066.78-37,351.80-15,129.99

Finding the Fourth Proportional to 27,066.78, 37,351.80 and 15,129.99

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Solution

The fourth proportional to 27,066.78, 37,351.80 and 15,129.99 is: 20,879.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,066.78 : 37,351.80 = 15,129.99 : x
  2. Step 2: Convert to fraction form
    27,066.78/37,351.80 = 15,129.99/x
  3. Step 3: Cross multiply
    27,066.78x = 37,351.80 × 15,129.99
  4. Step 4: Simplify right side
    27,066.78x = 565,132,360.48
  5. Step 5: Solve for x
    x = 565,132,360.48/27,066.78
  6. Step 6: Final answer
    x = 20,879.19

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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.