Home / 31,742.72-47,637.96-21,723.46

Finding the Fourth Proportional to 31,742.72, 47,637.96 and 21,723.46

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Solution

The fourth proportional to 31,742.72, 47,637.96 and 21,723.46 is: 32,601.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,742.72 : 47,637.96 = 21,723.46 : x
  2. Step 2: Convert to fraction form
    31,742.72/47,637.96 = 21,723.46/x
  3. Step 3: Cross multiply
    31,742.72x = 47,637.96 × 21,723.46
  4. Step 4: Simplify right side
    31,742.72x = 1,034,861,318.54
  5. Step 5: Solve for x
    x = 1,034,861,318.54/31,742.72
  6. Step 6: Final answer
    x = 32,601.53

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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.