Home / 31,945.64-43,989.90-31,237.58

Finding the Fourth Proportional to 31,945.64, 43,989.90 and 31,237.58

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Solution

The fourth proportional to 31,945.64, 43,989.90 and 31,237.58 is: 43,014.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,945.64 : 43,989.90 = 31,237.58 : x
  2. Step 2: Convert to fraction form
    31,945.64/43,989.90 = 31,237.58/x
  3. Step 3: Cross multiply
    31,945.64x = 43,989.90 × 31,237.58
  4. Step 4: Simplify right side
    31,945.64x = 1,374,138,020.44
  5. Step 5: Solve for x
    x = 1,374,138,020.44/31,945.64
  6. Step 6: Final answer
    x = 43,014.88

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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.