Home / 31,512.58-47,240.26-15,722.44

Finding the Fourth Proportional to 31,512.58, 47,240.26 and 15,722.44

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Solution

The fourth proportional to 31,512.58, 47,240.26 and 15,722.44 is: 23,569.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,512.58 : 47,240.26 = 15,722.44 : x
  2. Step 2: Convert to fraction form
    31,512.58/47,240.26 = 15,722.44/x
  3. Step 3: Cross multiply
    31,512.58x = 47,240.26 × 15,722.44
  4. Step 4: Simplify right side
    31,512.58x = 742,732,153.43
  5. Step 5: Solve for x
    x = 742,732,153.43/31,512.58
  6. Step 6: Final answer
    x = 23,569.39

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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.