Home / 31,761.28-47,646.45-10,409.42

Finding the Fourth Proportional to 31,761.28, 47,646.45 and 10,409.42

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Solution

The fourth proportional to 31,761.28, 47,646.45 and 10,409.42 is: 15,615.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,761.28 : 47,646.45 = 10,409.42 : x
  2. Step 2: Convert to fraction form
    31,761.28/47,646.45 = 10,409.42/x
  3. Step 3: Cross multiply
    31,761.28x = 47,646.45 × 10,409.42
  4. Step 4: Simplify right side
    31,761.28x = 495,972,028.68
  5. Step 5: Solve for x
    x = 495,972,028.68/31,761.28
  6. Step 6: Final answer
    x = 15,615.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.