Home / 31,981.08-47,973.96-10,912.68

Finding the Fourth Proportional to 31,981.08, 47,973.96 and 10,912.68

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Solution

The fourth proportional to 31,981.08, 47,973.96 and 10,912.68 is: 16,369.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,981.08 : 47,973.96 = 10,912.68 : x
  2. Step 2: Convert to fraction form
    31,981.08/47,973.96 = 10,912.68/x
  3. Step 3: Cross multiply
    31,981.08x = 47,973.96 × 10,912.68
  4. Step 4: Simplify right side
    31,981.08x = 523,524,473.81
  5. Step 5: Solve for x
    x = 523,524,473.81/31,981.08
  6. Step 6: Final answer
    x = 16,369.82

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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.