Home / 47,684.78-65,780.15-28,292.41

Finding the Fourth Proportional to 47,684.78, 65,780.15 and 28,292.41

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Solution

The fourth proportional to 47,684.78, 65,780.15 and 28,292.41 is: 39,028.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,684.78 : 65,780.15 = 28,292.41 : x
  2. Step 2: Convert to fraction form
    47,684.78/65,780.15 = 28,292.41/x
  3. Step 3: Cross multiply
    47,684.78x = 65,780.15 × 28,292.41
  4. Step 4: Simplify right side
    47,684.78x = 1,861,078,973.66
  5. Step 5: Solve for x
    x = 1,861,078,973.66/47,684.78
  6. Step 6: Final answer
    x = 39,028.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.