Home / 47,819.97-65,997.28-28,710.45

Finding the Fourth Proportional to 47,819.97, 65,997.28 and 28,710.45

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Solution

The fourth proportional to 47,819.97, 65,997.28 and 28,710.45 is: 39,623.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,819.97 : 65,997.28 = 28,710.45 : x
  2. Step 2: Convert to fraction form
    47,819.97/65,997.28 = 28,710.45/x
  3. Step 3: Cross multiply
    47,819.97x = 65,997.28 × 28,710.45
  4. Step 4: Simplify right side
    47,819.97x = 1,894,811,643.46
  5. Step 5: Solve for x
    x = 1,894,811,643.46/47,819.97
  6. Step 6: Final answer
    x = 39,623.86

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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.