Home / 18,070.20-27,105.12-4,922.40

Finding the Fourth Proportional to 18,070.20, 27,105.12 and 4,922.40

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Solution

The fourth proportional to 18,070.20, 27,105.12 and 4,922.40 is: 7,383.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,070.20 : 27,105.12 = 4,922.40 : x
  2. Step 2: Convert to fraction form
    18,070.20/27,105.12 = 4,922.40/x
  3. Step 3: Cross multiply
    18,070.20x = 27,105.12 × 4,922.40
  4. Step 4: Simplify right side
    18,070.20x = 133,422,242.69
  5. Step 5: Solve for x
    x = 133,422,242.69/18,070.20
  6. Step 6: Final answer
    x = 7,383.55

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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.