Home / 27,768.06-38,305.62-18,812.52

Finding the Fourth Proportional to 27,768.06, 38,305.62 and 18,812.52

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Solution

The fourth proportional to 27,768.06, 38,305.62 and 18,812.52 is: 25,951.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,768.06 : 38,305.62 = 18,812.52 : x
  2. Step 2: Convert to fraction form
    27,768.06/38,305.62 = 18,812.52/x
  3. Step 3: Cross multiply
    27,768.06x = 38,305.62 × 18,812.52
  4. Step 4: Simplify right side
    27,768.06x = 720,625,242.36
  5. Step 5: Solve for x
    x = 720,625,242.36/27,768.06
  6. Step 6: Final answer
    x = 25,951.59

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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.