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Finding the Fourth Proportional to 32.86, 45.17 and 29.58

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Solution

The fourth proportional to 32.86, 45.17 and 29.58 is: 40.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    32.86 : 45.17 = 29.58 : x
  2. Step 2: Convert to fraction form
    32.86/45.17 = 29.58/x
  3. Step 3: Cross multiply
    32.86x = 45.17 × 29.58
  4. Step 4: Simplify right side
    32.86x = 1,336.34
  5. Step 5: Solve for x
    x = 1,336.34/32.86
  6. Step 6: Final answer
    x = 40.67

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.