Home / 31,474.96-47,212.89-12,504.31

Finding the Fourth Proportional to 31,474.96, 47,212.89 and 12,504.31

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Solution

The fourth proportional to 31,474.96, 47,212.89 and 12,504.31 is: 18,756.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,474.96 : 47,212.89 = 12,504.31 : x
  2. Step 2: Convert to fraction form
    31,474.96/47,212.89 = 12,504.31/x
  3. Step 3: Cross multiply
    31,474.96x = 47,212.89 × 12,504.31
  4. Step 4: Simplify right side
    31,474.96x = 590,364,612.56
  5. Step 5: Solve for x
    x = 590,364,612.56/31,474.96
  6. Step 6: Final answer
    x = 18,756.64

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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.