Home / 36,129.68-49,859.18-20,214.12

Finding the Fourth Proportional to 36,129.68, 49,859.18 and 20,214.12

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Solution

The fourth proportional to 36,129.68, 49,859.18 and 20,214.12 is: 27,895.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,129.68 : 49,859.18 = 20,214.12 : x
  2. Step 2: Convert to fraction form
    36,129.68/49,859.18 = 20,214.12/x
  3. Step 3: Cross multiply
    36,129.68x = 49,859.18 × 20,214.12
  4. Step 4: Simplify right side
    36,129.68x = 1,007,859,346.55
  5. Step 5: Solve for x
    x = 1,007,859,346.55/36,129.68
  6. Step 6: Final answer
    x = 27,895.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.