Home / 22,757.68-31,405.28-12,685.94

Finding the Fourth Proportional to 22,757.68, 31,405.28 and 12,685.94

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Solution

The fourth proportional to 22,757.68, 31,405.28 and 12,685.94 is: 17,506.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,757.68 : 31,405.28 = 12,685.94 : x
  2. Step 2: Convert to fraction form
    22,757.68/31,405.28 = 12,685.94/x
  3. Step 3: Cross multiply
    22,757.68x = 31,405.28 × 12,685.94
  4. Step 4: Simplify right side
    22,757.68x = 398,405,497.76
  5. Step 5: Solve for x
    x = 398,405,497.76/22,757.68
  6. Step 6: Final answer
    x = 17,506.42

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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.