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Finding the Fourth Proportional to 32.10, 41.70 and 32.10

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Solution

The fourth proportional to 32.10, 41.70 and 32.10 is: 41.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    32.10 : 41.70 = 32.10 : x
  2. Step 2: Convert to fraction form
    32.10/41.70 = 32.10/x
  3. Step 3: Cross multiply
    32.10x = 41.70 × 32.10
  4. Step 4: Simplify right side
    32.10x = 1,338.57
  5. Step 5: Solve for x
    x = 1,338.57/32.10
  6. Step 6: Final answer
    x = 41.70

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Why These Related Problems?

These problems maintain the same ratio (1.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.