Home / 31,441.80-47,162.70-10,665.48

Finding the Fourth Proportional to 31,441.80, 47,162.70 and 10,665.48

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Solution

The fourth proportional to 31,441.80, 47,162.70 and 10,665.48 is: 15,998.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,441.80 : 47,162.70 = 10,665.48 : x
  2. Step 2: Convert to fraction form
    31,441.80/47,162.70 = 10,665.48/x
  3. Step 3: Cross multiply
    31,441.80x = 47,162.70 × 10,665.48
  4. Step 4: Simplify right side
    31,441.80x = 503,012,833.60
  5. Step 5: Solve for x
    x = 503,012,833.60/31,441.80
  6. Step 6: Final answer
    x = 15,998.22

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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.