Home / 31,746.38-43,814.46-19,650.74

Finding the Fourth Proportional to 31,746.38, 43,814.46 and 19,650.74

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Solution

The fourth proportional to 31,746.38, 43,814.46 and 19,650.74 is: 27,120.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,746.38 : 43,814.46 = 19,650.74 : x
  2. Step 2: Convert to fraction form
    31,746.38/43,814.46 = 19,650.74/x
  3. Step 3: Cross multiply
    31,746.38x = 43,814.46 × 19,650.74
  4. Step 4: Simplify right side
    31,746.38x = 860,986,463.45
  5. Step 5: Solve for x
    x = 860,986,463.45/31,746.38
  6. Step 6: Final answer
    x = 27,120.78

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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.