Home / 31,639.74-47,462.85-11,934.87

Finding the Fourth Proportional to 31,639.74, 47,462.85 and 11,934.87

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Solution

The fourth proportional to 31,639.74, 47,462.85 and 11,934.87 is: 17,903.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,639.74 : 47,462.85 = 11,934.87 : x
  2. Step 2: Convert to fraction form
    31,639.74/47,462.85 = 11,934.87/x
  3. Step 3: Cross multiply
    31,639.74x = 47,462.85 × 11,934.87
  4. Step 4: Simplify right side
    31,639.74x = 566,462,944.58
  5. Step 5: Solve for x
    x = 566,462,944.58/31,639.74
  6. Step 6: Final answer
    x = 17,903.53

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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.