Home / 28,161.19-38,855.66-17,543.31

Finding the Fourth Proportional to 28,161.19, 38,855.66 and 17,543.31

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Solution

The fourth proportional to 28,161.19, 38,855.66 and 17,543.31 is: 24,205.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,161.19 : 38,855.66 = 17,543.31 : x
  2. Step 2: Convert to fraction form
    28,161.19/38,855.66 = 17,543.31/x
  3. Step 3: Cross multiply
    28,161.19x = 38,855.66 × 17,543.31
  4. Step 4: Simplify right side
    28,161.19x = 681,656,888.63
  5. Step 5: Solve for x
    x = 681,656,888.63/28,161.19
  6. Step 6: Final answer
    x = 24,205.54

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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.