Home / 38,910.78-58,365.36-11,208.78

Finding the Fourth Proportional to 38,910.78, 58,365.36 and 11,208.78

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Solution

The fourth proportional to 38,910.78, 58,365.36 and 11,208.78 is: 16,812.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,910.78 : 58,365.36 = 11,208.78 : x
  2. Step 2: Convert to fraction form
    38,910.78/58,365.36 = 11,208.78/x
  3. Step 3: Cross multiply
    38,910.78x = 58,365.36 × 11,208.78
  4. Step 4: Simplify right side
    38,910.78x = 654,204,479.86
  5. Step 5: Solve for x
    x = 654,204,479.86/38,910.78
  6. Step 6: Final answer
    x = 16,812.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.