Home / 22,286.99-30,752.12-12,722.51

Finding the Fourth Proportional to 22,286.99, 30,752.12 and 12,722.51

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Solution

The fourth proportional to 22,286.99, 30,752.12 and 12,722.51 is: 17,554.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,286.99 : 30,752.12 = 12,722.51 : x
  2. Step 2: Convert to fraction form
    22,286.99/30,752.12 = 12,722.51/x
  3. Step 3: Cross multiply
    22,286.99x = 30,752.12 × 12,722.51
  4. Step 4: Simplify right side
    22,286.99x = 391,244,000.46
  5. Step 5: Solve for x
    x = 391,244,000.46/22,286.99
  6. Step 6: Final answer
    x = 17,554.82

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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.