Home / 47,655.64-65,766.42-28,789.12

Finding the Fourth Proportional to 47,655.64, 65,766.42 and 28,789.12

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Solution

The fourth proportional to 47,655.64, 65,766.42 and 28,789.12 is: 39,729.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,655.64 : 65,766.42 = 28,789.12 : x
  2. Step 2: Convert to fraction form
    47,655.64/65,766.42 = 28,789.12/x
  3. Step 3: Cross multiply
    47,655.64x = 65,766.42 × 28,789.12
  4. Step 4: Simplify right side
    47,655.64x = 1,893,357,357.35
  5. Step 5: Solve for x
    x = 1,893,357,357.35/47,655.64
  6. Step 6: Final answer
    x = 39,729.97

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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.