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Finding the Fourth Proportional to 19.43, 29.03 and 14.37

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Solution

The fourth proportional to 19.43, 29.03 and 14.37 is: 21.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    19.43 : 29.03 = 14.37 : x
  2. Step 2: Convert to fraction form
    19.43/29.03 = 14.37/x
  3. Step 3: Cross multiply
    19.43x = 29.03 × 14.37
  4. Step 4: Simplify right side
    19.43x = 417.02
  5. Step 5: Solve for x
    x = 417.02/19.43
  6. Step 6: Final answer
    x = 21.46

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Why These Related Problems?

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