Home / 30,277.86-41,778.90-17,355.30

Finding the Fourth Proportional to 30,277.86, 41,778.90 and 17,355.30

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Solution

The fourth proportional to 30,277.86, 41,778.90 and 17,355.30 is: 23,947.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,277.86 : 41,778.90 = 17,355.30 : x
  2. Step 2: Convert to fraction form
    30,277.86/41,778.90 = 17,355.30/x
  3. Step 3: Cross multiply
    30,277.86x = 41,778.90 × 17,355.30
  4. Step 4: Simplify right side
    30,277.86x = 725,085,343.17
  5. Step 5: Solve for x
    x = 725,085,343.17/30,277.86
  6. Step 6: Final answer
    x = 23,947.71

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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.