Home / 26,621.80-39,849.60-19,609.72

Finding the Fourth Proportional to 26,621.80, 39,849.60 and 19,609.72

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Solution

The fourth proportional to 26,621.80, 39,849.60 and 19,609.72 is: 29,353.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,621.80 : 39,849.60 = 19,609.72 : x
  2. Step 2: Convert to fraction form
    26,621.80/39,849.60 = 19,609.72/x
  3. Step 3: Cross multiply
    26,621.80x = 39,849.60 × 19,609.72
  4. Step 4: Simplify right side
    26,621.80x = 781,439,498.11
  5. Step 5: Solve for x
    x = 781,439,498.11/26,621.80
  6. Step 6: Final answer
    x = 29,353.37

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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.