Home / 31,757.96-43,831.71-18,327.35

Finding the Fourth Proportional to 31,757.96, 43,831.71 and 18,327.35

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Solution

The fourth proportional to 31,757.96, 43,831.71 and 18,327.35 is: 25,295.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,757.96 : 43,831.71 = 18,327.35 : x
  2. Step 2: Convert to fraction form
    31,757.96/43,831.71 = 18,327.35/x
  3. Step 3: Cross multiply
    31,757.96x = 43,831.71 × 18,327.35
  4. Step 4: Simplify right side
    31,757.96x = 803,319,199.85
  5. Step 5: Solve for x
    x = 803,319,199.85/31,757.96
  6. Step 6: Final answer
    x = 25,295.05

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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.