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Finding the Fourth Proportional to 35,231.20, 52,846.80 and 21,176.80

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Solution

The fourth proportional to 35,231.20, 52,846.80 and 21,176.80 is: 31,765.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,231.20 : 52,846.80 = 21,176.80 : x
  2. Step 2: Convert to fraction form
    35,231.20/52,846.80 = 21,176.80/x
  3. Step 3: Cross multiply
    35,231.20x = 52,846.80 × 21,176.80
  4. Step 4: Simplify right side
    35,231.20x = 1,119,126,114.24
  5. Step 5: Solve for x
    x = 1,119,126,114.24/35,231.20
  6. Step 6: Final answer
    x = 31,765.20

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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.