Home / 31,424.46-47,137.12-10,366.68

Finding the Fourth Proportional to 31,424.46, 47,137.12 and 10,366.68

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Solution

The fourth proportional to 31,424.46, 47,137.12 and 10,366.68 is: 15,550.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,424.46 : 47,137.12 = 10,366.68 : x
  2. Step 2: Convert to fraction form
    31,424.46/47,137.12 = 10,366.68/x
  3. Step 3: Cross multiply
    31,424.46x = 47,137.12 × 10,366.68
  4. Step 4: Simplify right side
    31,424.46x = 488,655,439.16
  5. Step 5: Solve for x
    x = 488,655,439.16/31,424.46
  6. Step 6: Final answer
    x = 15,550.16

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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.