Home / 33,147.53-45,740.13-18,802.78

Finding the Fourth Proportional to 33,147.53, 45,740.13 and 18,802.78

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Solution

The fourth proportional to 33,147.53, 45,740.13 and 18,802.78 is: 25,945.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,147.53 : 45,740.13 = 18,802.78 : x
  2. Step 2: Convert to fraction form
    33,147.53/45,740.13 = 18,802.78/x
  3. Step 3: Cross multiply
    33,147.53x = 45,740.13 × 18,802.78
  4. Step 4: Simplify right side
    33,147.53x = 860,041,601.56
  5. Step 5: Solve for x
    x = 860,041,601.56/33,147.53
  6. Step 6: Final answer
    x = 25,945.87

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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.