Home / 28,410.41-39,193.77-19,909.43

Finding the Fourth Proportional to 28,410.41, 39,193.77 and 19,909.43

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Solution

The fourth proportional to 28,410.41, 39,193.77 and 19,909.43 is: 27,466.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,410.41 : 39,193.77 = 19,909.43 : x
  2. Step 2: Convert to fraction form
    28,410.41/39,193.77 = 19,909.43/x
  3. Step 3: Cross multiply
    28,410.41x = 39,193.77 × 19,909.43
  4. Step 4: Simplify right side
    28,410.41x = 780,325,749.26
  5. Step 5: Solve for x
    x = 780,325,749.26/28,410.41
  6. Step 6: Final answer
    x = 27,466.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.