Home / 31,418.42-47,126.40-10,641.92

Finding the Fourth Proportional to 31,418.42, 47,126.40 and 10,641.92

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Solution

The fourth proportional to 31,418.42, 47,126.40 and 10,641.92 is: 15,962.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,418.42 : 47,126.40 = 10,641.92 : x
  2. Step 2: Convert to fraction form
    31,418.42/47,126.40 = 10,641.92/x
  3. Step 3: Cross multiply
    31,418.42x = 47,126.40 × 10,641.92
  4. Step 4: Simplify right side
    31,418.42x = 501,515,378.69
  5. Step 5: Solve for x
    x = 501,515,378.69/31,418.42
  6. Step 6: Final answer
    x = 15,962.46

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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.