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Finding the Fourth Proportional to 36,676.80, 55,036.80 and 13,305.60

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Solution

The fourth proportional to 36,676.80, 55,036.80 and 13,305.60 is: 19,966.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,676.80 : 55,036.80 = 13,305.60 : x
  2. Step 2: Convert to fraction form
    36,676.80/55,036.80 = 13,305.60/x
  3. Step 3: Cross multiply
    36,676.80x = 55,036.80 × 13,305.60
  4. Step 4: Simplify right side
    36,676.80x = 732,297,646.08
  5. Step 5: Solve for x
    x = 732,297,646.08/36,676.80
  6. Step 6: Final answer
    x = 19,966.24

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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.