Home / 30,081.38-45,086.83-10,342.49

Finding the Fourth Proportional to 30,081.38, 45,086.83 and 10,342.49

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Solution

The fourth proportional to 30,081.38, 45,086.83 and 10,342.49 is: 15,501.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,081.38 : 45,086.83 = 10,342.49 : x
  2. Step 2: Convert to fraction form
    30,081.38/45,086.83 = 10,342.49/x
  3. Step 3: Cross multiply
    30,081.38x = 45,086.83 × 10,342.49
  4. Step 4: Simplify right side
    30,081.38x = 466,309,837.12
  5. Step 5: Solve for x
    x = 466,309,837.12/30,081.38
  6. Step 6: Final answer
    x = 15,501.61

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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.