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Finding the Fourth Proportional to 36,700.80, 55,065.60 and 13,329.60

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Solution

The fourth proportional to 36,700.80, 55,065.60 and 13,329.60 is: 19,999.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,700.80 : 55,065.60 = 13,329.60 : x
  2. Step 2: Convert to fraction form
    36,700.80/55,065.60 = 13,329.60/x
  3. Step 3: Cross multiply
    36,700.80x = 55,065.60 × 13,329.60
  4. Step 4: Simplify right side
    36,700.80x = 734,002,421.76
  5. Step 5: Solve for x
    x = 734,002,421.76/36,700.80
  6. Step 6: Final answer
    x = 19,999.63

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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.