Home / 31,180.71-46,778.37-21,324.63

Finding the Fourth Proportional to 31,180.71, 46,778.37 and 21,324.63

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Solution

The fourth proportional to 31,180.71, 46,778.37 and 21,324.63 is: 31,991.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,180.71 : 46,778.37 = 21,324.63 : x
  2. Step 2: Convert to fraction form
    31,180.71/46,778.37 = 21,324.63/x
  3. Step 3: Cross multiply
    31,180.71x = 46,778.37 × 21,324.63
  4. Step 4: Simplify right side
    31,180.71x = 997,531,432.25
  5. Step 5: Solve for x
    x = 997,531,432.25/31,180.71
  6. Step 6: Final answer
    x = 31,991.94

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1.5x scale

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.