Home / 30,219.20-41,708.46-19,310.36

Finding the Fourth Proportional to 30,219.20, 41,708.46 and 19,310.36

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Solution

The fourth proportional to 30,219.20, 41,708.46 and 19,310.36 is: 26,652.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,219.20 : 41,708.46 = 19,310.36 : x
  2. Step 2: Convert to fraction form
    30,219.20/41,708.46 = 19,310.36/x
  3. Step 3: Cross multiply
    30,219.20x = 41,708.46 × 19,310.36
  4. Step 4: Simplify right side
    30,219.20x = 805,405,377.65
  5. Step 5: Solve for x
    x = 805,405,377.65/30,219.20
  6. Step 6: Final answer
    x = 26,652.11

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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.