Home / 30,558.32-45,843.24-12,091.76

Finding the Fourth Proportional to 30,558.32, 45,843.24 and 12,091.76

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Solution

The fourth proportional to 30,558.32, 45,843.24 and 12,091.76 is: 18,139.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,558.32 : 45,843.24 = 12,091.76 : x
  2. Step 2: Convert to fraction form
    30,558.32/45,843.24 = 12,091.76/x
  3. Step 3: Cross multiply
    30,558.32x = 45,843.24 × 12,091.76
  4. Step 4: Simplify right side
    30,558.32x = 554,325,455.70
  5. Step 5: Solve for x
    x = 554,325,455.70/30,558.32
  6. Step 6: Final answer
    x = 18,139.92

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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.