Home / 47,847.52-66,031.92-28,986.40

Finding the Fourth Proportional to 47,847.52, 66,031.92 and 28,986.40

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Solution

The fourth proportional to 47,847.52, 66,031.92 and 28,986.40 is: 40,002.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,847.52 : 66,031.92 = 28,986.40 : x
  2. Step 2: Convert to fraction form
    47,847.52/66,031.92 = 28,986.40/x
  3. Step 3: Cross multiply
    47,847.52x = 66,031.92 × 28,986.40
  4. Step 4: Simplify right side
    47,847.52x = 1,914,027,645.89
  5. Step 5: Solve for x
    x = 1,914,027,645.89/47,847.52
  6. Step 6: Final answer
    x = 40,002.65

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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.