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Finding the Fourth Proportional to 23.55, 32.48 and 15.34

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Solution

The fourth proportional to 23.55, 32.48 and 15.34 is: 21.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    23.55 : 32.48 = 15.34 : x
  2. Step 2: Convert to fraction form
    23.55/32.48 = 15.34/x
  3. Step 3: Cross multiply
    23.55x = 32.48 × 15.34
  4. Step 4: Simplify right side
    23.55x = 498.17
  5. Step 5: Solve for x
    x = 498.17/23.55
  6. Step 6: Final answer
    x = 21.16

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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.