Home / 31,289.78-43,180.76-17,863.22

Finding the Fourth Proportional to 31,289.78, 43,180.76 and 17,863.22

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Solution

The fourth proportional to 31,289.78, 43,180.76 and 17,863.22 is: 24,651.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,289.78 : 43,180.76 = 17,863.22 : x
  2. Step 2: Convert to fraction form
    31,289.78/43,180.76 = 17,863.22/x
  3. Step 3: Cross multiply
    31,289.78x = 43,180.76 × 17,863.22
  4. Step 4: Simplify right side
    31,289.78x = 771,347,415.65
  5. Step 5: Solve for x
    x = 771,347,415.65/31,289.78
  6. Step 6: Final answer
    x = 24,651.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.