Home / 47,700.92-71,556.28-12,640.58

Finding the Fourth Proportional to 47,700.92, 71,556.28 and 12,640.58

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Solution

The fourth proportional to 47,700.92, 71,556.28 and 12,640.58 is: 18,962.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,700.92 : 71,556.28 = 12,640.58 : x
  2. Step 2: Convert to fraction form
    47,700.92/71,556.28 = 12,640.58/x
  3. Step 3: Cross multiply
    47,700.92x = 71,556.28 × 12,640.58
  4. Step 4: Simplify right side
    47,700.92x = 904,512,734.55
  5. Step 5: Solve for x
    x = 904,512,734.55/47,700.92
  6. Step 6: Final answer
    x = 18,962.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.