Home / 31,424.44-47,135.42-10,647.92

Finding the Fourth Proportional to 31,424.44, 47,135.42 and 10,647.92

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Solution

The fourth proportional to 31,424.44, 47,135.42 and 10,647.92 is: 15,971.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,424.44 : 47,135.42 = 10,647.92 : x
  2. Step 2: Convert to fraction form
    31,424.44/47,135.42 = 10,647.92/x
  3. Step 3: Cross multiply
    31,424.44x = 47,135.42 × 10,647.92
  4. Step 4: Simplify right side
    31,424.44x = 501,894,181.33
  5. Step 5: Solve for x
    x = 501,894,181.33/31,424.44
  6. Step 6: Final answer
    x = 15,971.46

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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.