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Finding the Fourth Proportional to 25, 37.52 and 14.32

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Solution

The fourth proportional to 25, 37.52 and 14.32 is: 21.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    25 : 37.52 = 14.32 : x
  2. Step 2: Convert to fraction form
    25/37.52 = 14.32/x
  3. Step 3: Cross multiply
    25x = 37.52 × 14.32
  4. Step 4: Simplify right side
    25x = 537.29
  5. Step 5: Solve for x
    x = 537.29/25
  6. Step 6: Final answer
    x = 21.49

Related Problems

Find fourth proportional to 12.50, 18.76 and 7.16
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Double scale
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Similar ratio
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1.5x scale

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.