Home / 20,091.06-30,146.58-9,005.58

Finding the Fourth Proportional to 20,091.06, 30,146.58 and 9,005.58

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Solution

The fourth proportional to 20,091.06, 30,146.58 and 9,005.58 is: 13,512.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,091.06 : 30,146.58 = 9,005.58 : x
  2. Step 2: Convert to fraction form
    20,091.06/30,146.58 = 9,005.58/x
  3. Step 3: Cross multiply
    20,091.06x = 30,146.58 × 9,005.58
  4. Step 4: Simplify right side
    20,091.06x = 271,487,437.92
  5. Step 5: Solve for x
    x = 271,487,437.92/20,091.06
  6. Step 6: Final answer
    x = 13,512.85

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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.