Home / 31,688.68-47,525.82-14,149

Finding the Fourth Proportional to 31,688.68, 47,525.82 and 14,149

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Solution

The fourth proportional to 31,688.68, 47,525.82 and 14,149 is: 21,220.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,688.68 : 47,525.82 = 14,149 : x
  2. Step 2: Convert to fraction form
    31,688.68/47,525.82 = 14,149/x
  3. Step 3: Cross multiply
    31,688.68x = 47,525.82 × 14,149
  4. Step 4: Simplify right side
    31,688.68x = 672,442,827.18
  5. Step 5: Solve for x
    x = 672,442,827.18/31,688.68
  6. Step 6: Final answer
    x = 21,220.29

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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.