Home / 40,917.72-56,456.08-31,367.16

Finding the Fourth Proportional to 40,917.72, 56,456.08 and 31,367.16

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Solution

The fourth proportional to 40,917.72, 56,456.08 and 31,367.16 is: 43,278.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,917.72 : 56,456.08 = 31,367.16 : x
  2. Step 2: Convert to fraction form
    40,917.72/56,456.08 = 31,367.16/x
  3. Step 3: Cross multiply
    40,917.72x = 56,456.08 × 31,367.16
  4. Step 4: Simplify right side
    40,917.72x = 1,770,866,894.33
  5. Step 5: Solve for x
    x = 1,770,866,894.33/40,917.72
  6. Step 6: Final answer
    x = 43,278.73

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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.