Home / 47,175.56-70,738.95-13,891.31

Finding the Fourth Proportional to 47,175.56, 70,738.95 and 13,891.31

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Solution

The fourth proportional to 47,175.56, 70,738.95 and 13,891.31 is: 20,829.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,175.56 : 70,738.95 = 13,891.31 : x
  2. Step 2: Convert to fraction form
    47,175.56/70,738.95 = 13,891.31/x
  3. Step 3: Cross multiply
    47,175.56x = 70,738.95 × 13,891.31
  4. Step 4: Simplify right side
    47,175.56x = 982,656,683.52
  5. Step 5: Solve for x
    x = 982,656,683.52/47,175.56
  6. Step 6: Final answer
    x = 20,829.78

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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.