Home / 22,786.20-31,398.28-16,808.40

Finding the Fourth Proportional to 22,786.20, 31,398.28 and 16,808.40

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Solution

The fourth proportional to 22,786.20, 31,398.28 and 16,808.40 is: 23,161.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,786.20 : 31,398.28 = 16,808.40 : x
  2. Step 2: Convert to fraction form
    22,786.20/31,398.28 = 16,808.40/x
  3. Step 3: Cross multiply
    22,786.20x = 31,398.28 × 16,808.40
  4. Step 4: Simplify right side
    22,786.20x = 527,754,849.55
  5. Step 5: Solve for x
    x = 527,754,849.55/22,786.20
  6. Step 6: Final answer
    x = 23,161.16

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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.