Home / 20,481.77-30,740.88-10,627.85

Finding the Fourth Proportional to 20,481.77, 30,740.88 and 10,627.85

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Solution

The fourth proportional to 20,481.77, 30,740.88 and 10,627.85 is: 15,951.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,481.77 : 30,740.88 = 10,627.85 : x
  2. Step 2: Convert to fraction form
    20,481.77/30,740.88 = 10,627.85/x
  3. Step 3: Cross multiply
    20,481.77x = 30,740.88 × 10,627.85
  4. Step 4: Simplify right side
    20,481.77x = 326,709,461.51
  5. Step 5: Solve for x
    x = 326,709,461.51/20,481.77
  6. Step 6: Final answer
    x = 15,951.23

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1.5x scale

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.