Home / 31,381.08-47,073.24-8,007.72

Finding the Fourth Proportional to 31,381.08, 47,073.24 and 8,007.72

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Solution

The fourth proportional to 31,381.08, 47,073.24 and 8,007.72 is: 12,011.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,381.08 : 47,073.24 = 8,007.72 : x
  2. Step 2: Convert to fraction form
    31,381.08/47,073.24 = 8,007.72/x
  3. Step 3: Cross multiply
    31,381.08x = 47,073.24 × 8,007.72
  4. Step 4: Simplify right side
    31,381.08x = 376,949,325.41
  5. Step 5: Solve for x
    x = 376,949,325.41/31,381.08
  6. Step 6: Final answer
    x = 12,011.99

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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.