Home / 47,665.40-71,504.18-18,091.70

Finding the Fourth Proportional to 47,665.40, 71,504.18 and 18,091.70

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Solution

The fourth proportional to 47,665.40, 71,504.18 and 18,091.70 is: 27,139.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,665.40 : 71,504.18 = 18,091.70 : x
  2. Step 2: Convert to fraction form
    47,665.40/71,504.18 = 18,091.70/x
  3. Step 3: Cross multiply
    47,665.40x = 71,504.18 × 18,091.70
  4. Step 4: Simplify right side
    47,665.40x = 1,293,631,725.33
  5. Step 5: Solve for x
    x = 1,293,631,725.33/47,665.40
  6. Step 6: Final answer
    x = 27,139.85

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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.