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Finding the Fourth Proportional to 43.00, 64.46 and 15.93

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Solution

The fourth proportional to 43.00, 64.46 and 15.93 is: 23.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    43.00 : 64.46 = 15.93 : x
  2. Step 2: Convert to fraction form
    43.00/64.46 = 15.93/x
  3. Step 3: Cross multiply
    43.00x = 64.46 × 15.93
  4. Step 4: Simplify right side
    43.00x = 1,026.89
  5. Step 5: Solve for x
    x = 1,026.89/43.00
  6. Step 6: Final answer
    x = 23.88

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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.