Home / 51,214.20-76,832.10-21,616.80

Finding the Fourth Proportional to 51,214.20, 76,832.10 and 21,616.80

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Solution

The fourth proportional to 51,214.20, 76,832.10 and 21,616.80 is: 32,429.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,214.20 : 76,832.10 = 21,616.80 : x
  2. Step 2: Convert to fraction form
    51,214.20/76,832.10 = 21,616.80/x
  3. Step 3: Cross multiply
    51,214.20x = 76,832.10 × 21,616.80
  4. Step 4: Simplify right side
    51,214.20x = 1,660,864,139.28
  5. Step 5: Solve for x
    x = 1,660,864,139.28/51,214.20
  6. Step 6: Final answer
    x = 32,429.76

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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.