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Finding the Fourth Proportional to 25.35, 37.98 and 17.62

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Solution

The fourth proportional to 25.35, 37.98 and 17.62 is: 26.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    25.35 : 37.98 = 17.62 : x
  2. Step 2: Convert to fraction form
    25.35/37.98 = 17.62/x
  3. Step 3: Cross multiply
    25.35x = 37.98 × 17.62
  4. Step 4: Simplify right side
    25.35x = 669.21
  5. Step 5: Solve for x
    x = 669.21/25.35
  6. Step 6: Final answer
    x = 26.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.