Home / 31,902.68-47,857.29-12,197.81

Finding the Fourth Proportional to 31,902.68, 47,857.29 and 12,197.81

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Solution

The fourth proportional to 31,902.68, 47,857.29 and 12,197.81 is: 18,297.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,902.68 : 47,857.29 = 12,197.81 : x
  2. Step 2: Convert to fraction form
    31,902.68/47,857.29 = 12,197.81/x
  3. Step 3: Cross multiply
    31,902.68x = 47,857.29 × 12,197.81
  4. Step 4: Simplify right side
    31,902.68x = 583,754,130.53
  5. Step 5: Solve for x
    x = 583,754,130.53/31,902.68
  6. Step 6: Final answer
    x = 18,297.97

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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.