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Finding the Fourth Proportional to 14.52, 21.65 and 13.57

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Solution

The fourth proportional to 14.52, 21.65 and 13.57 is: 20.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    14.52 : 21.65 = 13.57 : x
  2. Step 2: Convert to fraction form
    14.52/21.65 = 13.57/x
  3. Step 3: Cross multiply
    14.52x = 21.65 × 13.57
  4. Step 4: Simplify right side
    14.52x = 293.79
  5. Step 5: Solve for x
    x = 293.79/14.52
  6. Step 6: Final answer
    x = 20.23

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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.