Home / 20,625.08-28,462.64-11,193.66

Finding the Fourth Proportional to 20,625.08, 28,462.64 and 11,193.66

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Solution

The fourth proportional to 20,625.08, 28,462.64 and 11,193.66 is: 15,447.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,625.08 : 28,462.64 = 11,193.66 : x
  2. Step 2: Convert to fraction form
    20,625.08/28,462.64 = 11,193.66/x
  3. Step 3: Cross multiply
    20,625.08x = 28,462.64 × 11,193.66
  4. Step 4: Simplify right side
    20,625.08x = 318,601,058.89
  5. Step 5: Solve for x
    x = 318,601,058.89/20,625.08
  6. Step 6: Final answer
    x = 15,447.27

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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.