Home / 47,286.72-65,217.60-28,419.84

Finding the Fourth Proportional to 47,286.72, 65,217.60 and 28,419.84

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Solution

The fourth proportional to 47,286.72, 65,217.60 and 28,419.84 is: 39,196.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,286.72 : 65,217.60 = 28,419.84 : x
  2. Step 2: Convert to fraction form
    47,286.72/65,217.60 = 28,419.84/x
  3. Step 3: Cross multiply
    47,286.72x = 65,217.60 × 28,419.84
  4. Step 4: Simplify right side
    47,286.72x = 1,853,473,757.18
  5. Step 5: Solve for x
    x = 1,853,473,757.18/47,286.72
  6. Step 6: Final answer
    x = 39,196.50

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1.5x scale

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.