Home / 31,643.15-47,470.17-12,933.36

Finding the Fourth Proportional to 31,643.15, 47,470.17 and 12,933.36

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Solution

The fourth proportional to 31,643.15, 47,470.17 and 12,933.36 is: 19,402.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,643.15 : 47,470.17 = 12,933.36 : x
  2. Step 2: Convert to fraction form
    31,643.15/47,470.17 = 12,933.36/x
  3. Step 3: Cross multiply
    31,643.15x = 47,470.17 × 12,933.36
  4. Step 4: Simplify right side
    31,643.15x = 613,948,797.87
  5. Step 5: Solve for x
    x = 613,948,797.87/31,643.15
  6. Step 6: Final answer
    x = 19,402.27

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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.