Home / 27,438.78-37,879.65-17,377.74

Finding the Fourth Proportional to 27,438.78, 37,879.65 and 17,377.74

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Solution

The fourth proportional to 27,438.78, 37,879.65 and 17,377.74 is: 23,990.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,438.78 : 37,879.65 = 17,377.74 : x
  2. Step 2: Convert to fraction form
    27,438.78/37,879.65 = 17,377.74/x
  3. Step 3: Cross multiply
    27,438.78x = 37,879.65 × 17,377.74
  4. Step 4: Simplify right side
    27,438.78x = 658,262,708.99
  5. Step 5: Solve for x
    x = 658,262,708.99/27,438.78
  6. Step 6: Final answer
    x = 23,990.23

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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.