Home / 31,711.80-47,573.10-10,930.44

Finding the Fourth Proportional to 31,711.80, 47,573.10 and 10,930.44

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Solution

The fourth proportional to 31,711.80, 47,573.10 and 10,930.44 is: 16,397.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,711.80 : 47,573.10 = 10,930.44 : x
  2. Step 2: Convert to fraction form
    31,711.80/47,573.10 = 10,930.44/x
  3. Step 3: Cross multiply
    31,711.80x = 47,573.10 × 10,930.44
  4. Step 4: Simplify right side
    31,711.80x = 519,994,860.51
  5. Step 5: Solve for x
    x = 519,994,860.51/31,711.80
  6. Step 6: Final answer
    x = 16,397.52

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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.