Home / 47,878.96-71,815.74-21,217.27

Finding the Fourth Proportional to 47,878.96, 71,815.74 and 21,217.27

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Solution

The fourth proportional to 47,878.96, 71,815.74 and 21,217.27 is: 31,824.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,878.96 : 71,815.74 = 21,217.27 : x
  2. Step 2: Convert to fraction form
    47,878.96/71,815.74 = 21,217.27/x
  3. Step 3: Cross multiply
    47,878.96x = 71,815.74 × 21,217.27
  4. Step 4: Simplify right side
    47,878.96x = 1,523,733,686.73
  5. Step 5: Solve for x
    x = 1,523,733,686.73/47,878.96
  6. Step 6: Final answer
    x = 31,824.70

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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.