Home / 20,340.98-28,073.22-11,843.25

Finding the Fourth Proportional to 20,340.98, 28,073.22 and 11,843.25

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Solution

The fourth proportional to 20,340.98, 28,073.22 and 11,843.25 is: 16,345.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,340.98 : 28,073.22 = 11,843.25 : x
  2. Step 2: Convert to fraction form
    20,340.98/28,073.22 = 11,843.25/x
  3. Step 3: Cross multiply
    20,340.98x = 28,073.22 × 11,843.25
  4. Step 4: Simplify right side
    20,340.98x = 332,477,985.00
  5. Step 5: Solve for x
    x = 332,477,985.00/20,340.98
  6. Step 6: Final answer
    x = 16,345.23

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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.