Home / 36,405.87-50,240.07-20,490.39

Finding the Fourth Proportional to 36,405.87, 50,240.07 and 20,490.39

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Solution

The fourth proportional to 36,405.87, 50,240.07 and 20,490.39 is: 28,276.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,405.87 : 50,240.07 = 20,490.39 : x
  2. Step 2: Convert to fraction form
    36,405.87/50,240.07 = 20,490.39/x
  3. Step 3: Cross multiply
    36,405.87x = 50,240.07 × 20,490.39
  4. Step 4: Simplify right side
    36,405.87x = 1,029,438,627.93
  5. Step 5: Solve for x
    x = 1,029,438,627.93/36,405.87
  6. Step 6: Final answer
    x = 28,276.72

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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.