Home / 47,712.84-65,849.76-28,849.92

Finding the Fourth Proportional to 47,712.84, 65,849.76 and 28,849.92

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Solution

The fourth proportional to 47,712.84, 65,849.76 and 28,849.92 is: 39,816.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,712.84 : 65,849.76 = 28,849.92 : x
  2. Step 2: Convert to fraction form
    47,712.84/65,849.76 = 28,849.92/x
  3. Step 3: Cross multiply
    47,712.84x = 65,849.76 × 28,849.92
  4. Step 4: Simplify right side
    47,712.84x = 1,899,760,308.02
  5. Step 5: Solve for x
    x = 1,899,760,308.02/47,712.84
  6. Step 6: Final answer
    x = 39,816.54

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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.