Home / 27,665.75-38,194.47-18,261.65

Finding the Fourth Proportional to 27,665.75, 38,194.47 and 18,261.65

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Solution

The fourth proportional to 27,665.75, 38,194.47 and 18,261.65 is: 25,211.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,665.75 : 38,194.47 = 18,261.65 : x
  2. Step 2: Convert to fraction form
    27,665.75/38,194.47 = 18,261.65/x
  3. Step 3: Cross multiply
    27,665.75x = 38,194.47 × 18,261.65
  4. Step 4: Simplify right side
    27,665.75x = 697,494,138.56
  5. Step 5: Solve for x
    x = 697,494,138.56/27,665.75
  6. Step 6: Final answer
    x = 25,211.46

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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.