Home / 30,115.12-45,200.42-15,334.68

Finding the Fourth Proportional to 30,115.12, 45,200.42 and 15,334.68

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Solution

The fourth proportional to 30,115.12, 45,200.42 and 15,334.68 is: 23,016.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,115.12 : 45,200.42 = 15,334.68 : x
  2. Step 2: Convert to fraction form
    30,115.12/45,200.42 = 15,334.68/x
  3. Step 3: Cross multiply
    30,115.12x = 45,200.42 × 15,334.68
  4. Step 4: Simplify right side
    30,115.12x = 693,133,976.57
  5. Step 5: Solve for x
    x = 693,133,976.57/30,115.12
  6. Step 6: Final answer
    x = 23,016.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.