Home / 27,123.75-37,405.79-18,610.85

Finding the Fourth Proportional to 27,123.75, 37,405.79 and 18,610.85

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Solution

The fourth proportional to 27,123.75, 37,405.79 and 18,610.85 is: 25,665.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,123.75 : 37,405.79 = 18,610.85 : x
  2. Step 2: Convert to fraction form
    27,123.75/37,405.79 = 18,610.85/x
  3. Step 3: Cross multiply
    27,123.75x = 37,405.79 × 18,610.85
  4. Step 4: Simplify right side
    27,123.75x = 696,153,359.79
  5. Step 5: Solve for x
    x = 696,153,359.79/27,123.75
  6. Step 6: Final answer
    x = 25,665.83

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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.