Home / 30,286.19-45,426.09-8,101.81

Finding the Fourth Proportional to 30,286.19, 45,426.09 and 8,101.81

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Solution

The fourth proportional to 30,286.19, 45,426.09 and 8,101.81 is: 12,151.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,286.19 : 45,426.09 = 8,101.81 : x
  2. Step 2: Convert to fraction form
    30,286.19/45,426.09 = 8,101.81/x
  3. Step 3: Cross multiply
    30,286.19x = 45,426.09 × 8,101.81
  4. Step 4: Simplify right side
    30,286.19x = 368,033,550.22
  5. Step 5: Solve for x
    x = 368,033,550.22/30,286.19
  6. Step 6: Final answer
    x = 12,151.86

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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.