Home / 33,315.78-45,975.86-18,208.62

Finding the Fourth Proportional to 33,315.78, 45,975.86 and 18,208.62

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Solution

The fourth proportional to 33,315.78, 45,975.86 and 18,208.62 is: 25,127.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,315.78 : 45,975.86 = 18,208.62 : x
  2. Step 2: Convert to fraction form
    33,315.78/45,975.86 = 18,208.62/x
  3. Step 3: Cross multiply
    33,315.78x = 45,975.86 × 18,208.62
  4. Step 4: Simplify right side
    33,315.78x = 837,157,121.67
  5. Step 5: Solve for x
    x = 837,157,121.67/33,315.78
  6. Step 6: Final answer
    x = 25,127.95

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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.