Home / 31,835.28-43,933.20-18,409.56

Finding the Fourth Proportional to 31,835.28, 43,933.20 and 18,409.56

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Solution

The fourth proportional to 31,835.28, 43,933.20 and 18,409.56 is: 25,405.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,835.28 : 43,933.20 = 18,409.56 : x
  2. Step 2: Convert to fraction form
    31,835.28/43,933.20 = 18,409.56/x
  3. Step 3: Cross multiply
    31,835.28x = 43,933.20 × 18,409.56
  4. Step 4: Simplify right side
    31,835.28x = 808,790,881.39
  5. Step 5: Solve for x
    x = 808,790,881.39/31,835.28
  6. Step 6: Final answer
    x = 25,405.49

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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.