Home / 31,984.23-47,983.28-12,262.81

Finding the Fourth Proportional to 31,984.23, 47,983.28 and 12,262.81

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Solution

The fourth proportional to 31,984.23, 47,983.28 and 12,262.81 is: 18,396.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,984.23 : 47,983.28 = 12,262.81 : x
  2. Step 2: Convert to fraction form
    31,984.23/47,983.28 = 12,262.81/x
  3. Step 3: Cross multiply
    31,984.23x = 47,983.28 × 12,262.81
  4. Step 4: Simplify right side
    31,984.23x = 588,409,845.82
  5. Step 5: Solve for x
    x = 588,409,845.82/31,984.23
  6. Step 6: Final answer
    x = 18,396.87

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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.