Home / 31,329.43-47,006.45-13,786.96

Finding the Fourth Proportional to 31,329.43, 47,006.45 and 13,786.96

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Solution

The fourth proportional to 31,329.43, 47,006.45 and 13,786.96 is: 20,685.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,329.43 : 47,006.45 = 13,786.96 : x
  2. Step 2: Convert to fraction form
    31,329.43/47,006.45 = 13,786.96/x
  3. Step 3: Cross multiply
    31,329.43x = 47,006.45 × 13,786.96
  4. Step 4: Simplify right side
    31,329.43x = 648,075,988.69
  5. Step 5: Solve for x
    x = 648,075,988.69/31,329.43
  6. Step 6: Final answer
    x = 20,685.85

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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.