Home / 30,251.36-41,740.89-18,315.80

Finding the Fourth Proportional to 30,251.36, 41,740.89 and 18,315.80

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Solution

The fourth proportional to 30,251.36, 41,740.89 and 18,315.80 is: 25,272.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,251.36 : 41,740.89 = 18,315.80 : x
  2. Step 2: Convert to fraction form
    30,251.36/41,740.89 = 18,315.80/x
  3. Step 3: Cross multiply
    30,251.36x = 41,740.89 × 18,315.80
  4. Step 4: Simplify right side
    30,251.36x = 764,517,584.36
  5. Step 5: Solve for x
    x = 764,517,584.36/30,251.36
  6. Step 6: Final answer
    x = 25,272.18

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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.