Home / 31,105.60-46,672.80-16,331.20

Finding the Fourth Proportional to 31,105.60, 46,672.80 and 16,331.20

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Solution

The fourth proportional to 31,105.60, 46,672.80 and 16,331.20 is: 24,504.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,105.60 : 46,672.80 = 16,331.20 : x
  2. Step 2: Convert to fraction form
    31,105.60/46,672.80 = 16,331.20/x
  3. Step 3: Cross multiply
    31,105.60x = 46,672.80 × 16,331.20
  4. Step 4: Simplify right side
    31,105.60x = 762,222,831.36
  5. Step 5: Solve for x
    x = 762,222,831.36/31,105.60
  6. Step 6: Final answer
    x = 24,504.36

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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.