Home / 31,384.83-47,078.87-8,011.47

Finding the Fourth Proportional to 31,384.83, 47,078.87 and 8,011.47

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Solution

The fourth proportional to 31,384.83, 47,078.87 and 8,011.47 is: 12,017.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,384.83 : 47,078.87 = 8,011.47 : x
  2. Step 2: Convert to fraction form
    31,384.83/47,078.87 = 8,011.47/x
  3. Step 3: Cross multiply
    31,384.83x = 47,078.87 × 8,011.47
  4. Step 4: Simplify right side
    31,384.83x = 377,170,914.58
  5. Step 5: Solve for x
    x = 377,170,914.58/31,384.83
  6. Step 6: Final answer
    x = 12,017.62

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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.