Home / 22,417.19-30,936.68-12,859.78

Finding the Fourth Proportional to 22,417.19, 30,936.68 and 12,859.78

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Solution

The fourth proportional to 22,417.19, 30,936.68 and 12,859.78 is: 17,747.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,417.19 : 30,936.68 = 12,859.78 : x
  2. Step 2: Convert to fraction form
    22,417.19/30,936.68 = 12,859.78/x
  3. Step 3: Cross multiply
    22,417.19x = 30,936.68 × 12,859.78
  4. Step 4: Simplify right side
    22,417.19x = 397,838,723.76
  5. Step 5: Solve for x
    x = 397,838,723.76/22,417.19
  6. Step 6: Final answer
    x = 17,747.04

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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.