Home / 39,638.22-59,449.77-19,911.30

Finding the Fourth Proportional to 39,638.22, 59,449.77 and 19,911.30

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Solution

The fourth proportional to 39,638.22, 59,449.77 and 19,911.30 is: 29,863.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,638.22 : 59,449.77 = 19,911.30 : x
  2. Step 2: Convert to fraction form
    39,638.22/59,449.77 = 19,911.30/x
  3. Step 3: Cross multiply
    39,638.22x = 59,449.77 × 19,911.30
  4. Step 4: Simplify right side
    39,638.22x = 1,183,722,205.40
  5. Step 5: Solve for x
    x = 1,183,722,205.40/39,638.22
  6. Step 6: Final answer
    x = 29,863.15

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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.