Home / 31,687.68-47,524.32-14,148

Finding the Fourth Proportional to 31,687.68, 47,524.32 and 14,148

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Solution

The fourth proportional to 31,687.68, 47,524.32 and 14,148 is: 21,218.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,687.68 : 47,524.32 = 14,148 : x
  2. Step 2: Convert to fraction form
    31,687.68/47,524.32 = 14,148/x
  3. Step 3: Cross multiply
    31,687.68x = 47,524.32 × 14,148
  4. Step 4: Simplify right side
    31,687.68x = 672,374,079.36
  5. Step 5: Solve for x
    x = 672,374,079.36/31,687.68
  6. Step 6: Final answer
    x = 21,218.79

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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.