Home / 30,091.12-45,133.03-15,310.65

Finding the Fourth Proportional to 30,091.12, 45,133.03 and 15,310.65

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Solution

The fourth proportional to 30,091.12, 45,133.03 and 15,310.65 is: 22,964.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,091.12 : 45,133.03 = 15,310.65 : x
  2. Step 2: Convert to fraction form
    30,091.12/45,133.03 = 15,310.65/x
  3. Step 3: Cross multiply
    30,091.12x = 45,133.03 × 15,310.65
  4. Step 4: Simplify right side
    30,091.12x = 691,015,723.55
  5. Step 5: Solve for x
    x = 691,015,723.55/30,091.12
  6. Step 6: Final answer
    x = 22,964.11

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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.