Home / 36,021.20-54,031.80-9,728.60

Finding the Fourth Proportional to 36,021.20, 54,031.80 and 9,728.60

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Solution

The fourth proportional to 36,021.20, 54,031.80 and 9,728.60 is: 14,592.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,021.20 : 54,031.80 = 9,728.60 : x
  2. Step 2: Convert to fraction form
    36,021.20/54,031.80 = 9,728.60/x
  3. Step 3: Cross multiply
    36,021.20x = 54,031.80 × 9,728.60
  4. Step 4: Simplify right side
    36,021.20x = 525,653,769.48
  5. Step 5: Solve for x
    x = 525,653,769.48/36,021.20
  6. Step 6: Final answer
    x = 14,592.90

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Similar ratio
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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.