Home / 36,436.07-50,281.94-20,520.80

Finding the Fourth Proportional to 36,436.07, 50,281.94 and 20,520.80

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Solution

The fourth proportional to 36,436.07, 50,281.94 and 20,520.80 is: 28,318.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,436.07 : 50,281.94 = 20,520.80 : x
  2. Step 2: Convert to fraction form
    36,436.07/50,281.94 = 20,520.80/x
  3. Step 3: Cross multiply
    36,436.07x = 50,281.94 × 20,520.80
  4. Step 4: Simplify right side
    36,436.07x = 1,031,825,434.24
  5. Step 5: Solve for x
    x = 1,031,825,434.24/36,436.07
  6. Step 6: Final answer
    x = 28,318.79

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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.