Home / 28,111.51-38,793.09-16,166.44

Finding the Fourth Proportional to 28,111.51, 38,793.09 and 16,166.44

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Solution

The fourth proportional to 28,111.51, 38,793.09 and 16,166.44 is: 22,309.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,111.51 : 38,793.09 = 16,166.44 : x
  2. Step 2: Convert to fraction form
    28,111.51/38,793.09 = 16,166.44/x
  3. Step 3: Cross multiply
    28,111.51x = 38,793.09 × 16,166.44
  4. Step 4: Simplify right side
    28,111.51x = 627,146,161.90
  5. Step 5: Solve for x
    x = 627,146,161.90/28,111.51
  6. Step 6: Final answer
    x = 22,309.23

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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.