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Finding the Fourth Proportional to 22.92, 31.62 and 22.56

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Solution

The fourth proportional to 22.92, 31.62 and 22.56 is: 31.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    22.92 : 31.62 = 22.56 : x
  2. Step 2: Convert to fraction form
    22.92/31.62 = 22.56/x
  3. Step 3: Cross multiply
    22.92x = 31.62 × 22.56
  4. Step 4: Simplify right side
    22.92x = 713.35
  5. Step 5: Solve for x
    x = 713.35/22.92
  6. Step 6: Final answer
    x = 31.12

Related Problems

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Similar ratio
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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.