Home / 22,786.20-31,398.30-16,808.40

Finding the Fourth Proportional to 22,786.20, 31,398.30 and 16,808.40

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Solution

The fourth proportional to 22,786.20, 31,398.30 and 16,808.40 is: 23,161.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,786.20 : 31,398.30 = 16,808.40 : x
  2. Step 2: Convert to fraction form
    22,786.20/31,398.30 = 16,808.40/x
  3. Step 3: Cross multiply
    22,786.20x = 31,398.30 × 16,808.40
  4. Step 4: Simplify right side
    22,786.20x = 527,755,185.72
  5. Step 5: Solve for x
    x = 527,755,185.72/22,786.20
  6. Step 6: Final answer
    x = 23,161.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.