Home / 22,009.28-30,372.40-12,576.56

Finding the Fourth Proportional to 22,009.28, 30,372.40 and 12,576.56

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Solution

The fourth proportional to 22,009.28, 30,372.40 and 12,576.56 is: 17,355.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,009.28 : 30,372.40 = 12,576.56 : x
  2. Step 2: Convert to fraction form
    22,009.28/30,372.40 = 12,576.56/x
  3. Step 3: Cross multiply
    22,009.28x = 30,372.40 × 12,576.56
  4. Step 4: Simplify right side
    22,009.28x = 381,980,310.94
  5. Step 5: Solve for x
    x = 381,980,310.94/22,009.28
  6. Step 6: Final answer
    x = 17,355.42

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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.