Home / 36,662.40-54,969.30-13,285.80

Finding the Fourth Proportional to 36,662.40, 54,969.30 and 13,285.80

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Solution

The fourth proportional to 36,662.40, 54,969.30 and 13,285.80 is: 19,919.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,662.40 : 54,969.30 = 13,285.80 : x
  2. Step 2: Convert to fraction form
    36,662.40/54,969.30 = 13,285.80/x
  3. Step 3: Cross multiply
    36,662.40x = 54,969.30 × 13,285.80
  4. Step 4: Simplify right side
    36,662.40x = 730,311,125.94
  5. Step 5: Solve for x
    x = 730,311,125.94/36,662.40
  6. Step 6: Final answer
    x = 19,919.89

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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.