Home / 27,877.99-38,471.73-15,131.17

Finding the Fourth Proportional to 27,877.99, 38,471.73 and 15,131.17

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Solution

The fourth proportional to 27,877.99, 38,471.73 and 15,131.17 is: 20,881.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,877.99 : 38,471.73 = 15,131.17 : x
  2. Step 2: Convert to fraction form
    27,877.99/38,471.73 = 15,131.17/x
  3. Step 3: Cross multiply
    27,877.99x = 38,471.73 × 15,131.17
  4. Step 4: Simplify right side
    27,877.99x = 582,122,286.82
  5. Step 5: Solve for x
    x = 582,122,286.82/27,877.99
  6. Step 6: Final answer
    x = 20,881.07

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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.