Home / 31,678.74-47,513.79-8,303.22

Finding the Fourth Proportional to 31,678.74, 47,513.79 and 8,303.22

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Solution

The fourth proportional to 31,678.74, 47,513.79 and 8,303.22 is: 12,453.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,678.74 : 47,513.79 = 8,303.22 : x
  2. Step 2: Convert to fraction form
    31,678.74/47,513.79 = 8,303.22/x
  3. Step 3: Cross multiply
    31,678.74x = 47,513.79 × 8,303.22
  4. Step 4: Simplify right side
    31,678.74x = 394,517,451.40
  5. Step 5: Solve for x
    x = 394,517,451.40/31,678.74
  6. Step 6: Final answer
    x = 12,453.70

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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.