Home / 36,439.85-50,290.57-21,331.60

Finding the Fourth Proportional to 36,439.85, 50,290.57 and 21,331.60

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Solution

The fourth proportional to 36,439.85, 50,290.57 and 21,331.60 is: 29,439.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,439.85 : 50,290.57 = 21,331.60 : x
  2. Step 2: Convert to fraction form
    36,439.85/50,290.57 = 21,331.60/x
  3. Step 3: Cross multiply
    36,439.85x = 50,290.57 × 21,331.60
  4. Step 4: Simplify right side
    36,439.85x = 1,072,778,323.01
  5. Step 5: Solve for x
    x = 1,072,778,323.01/36,439.85
  6. Step 6: Final answer
    x = 29,439.70

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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.