Home / 22,270.08-30,732.72-12,838.56

Finding the Fourth Proportional to 22,270.08, 30,732.72 and 12,838.56

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Solution

The fourth proportional to 22,270.08, 30,732.72 and 12,838.56 is: 17,717.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,270.08 : 30,732.72 = 12,838.56 : x
  2. Step 2: Convert to fraction form
    22,270.08/30,732.72 = 12,838.56/x
  3. Step 3: Cross multiply
    22,270.08x = 30,732.72 × 12,838.56
  4. Step 4: Simplify right side
    22,270.08x = 394,563,869.68
  5. Step 5: Solve for x
    x = 394,563,869.68/22,270.08
  6. Step 6: Final answer
    x = 17,717.22

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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.