Home / 30,395.85-41,965.80-19,080.87

Finding the Fourth Proportional to 30,395.85, 41,965.80 and 19,080.87

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Solution

The fourth proportional to 30,395.85, 41,965.80 and 19,080.87 is: 26,343.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,395.85 : 41,965.80 = 19,080.87 : x
  2. Step 2: Convert to fraction form
    30,395.85/41,965.80 = 19,080.87/x
  3. Step 3: Cross multiply
    30,395.85x = 41,965.80 × 19,080.87
  4. Step 4: Simplify right side
    30,395.85x = 800,743,974.25
  5. Step 5: Solve for x
    x = 800,743,974.25/30,395.85
  6. Step 6: Final answer
    x = 26,343.86

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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.