Home / 30,049.79-45,035.24-22,115.15

Finding the Fourth Proportional to 30,049.79, 45,035.24 and 22,115.15

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Solution

The fourth proportional to 30,049.79, 45,035.24 and 22,115.15 is: 33,143.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,049.79 : 45,035.24 = 22,115.15 : x
  2. Step 2: Convert to fraction form
    30,049.79/45,035.24 = 22,115.15/x
  3. Step 3: Cross multiply
    30,049.79x = 45,035.24 × 22,115.15
  4. Step 4: Simplify right side
    30,049.79x = 995,960,752.13
  5. Step 5: Solve for x
    x = 995,960,752.13/30,049.79
  6. Step 6: Final answer
    x = 33,143.69

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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.