Home / 28,853.89-39,820.37-16,109.58

Finding the Fourth Proportional to 28,853.89, 39,820.37 and 16,109.58

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Solution

The fourth proportional to 28,853.89, 39,820.37 and 16,109.58 is: 22,232.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,853.89 : 39,820.37 = 16,109.58 : x
  2. Step 2: Convert to fraction form
    28,853.89/39,820.37 = 16,109.58/x
  3. Step 3: Cross multiply
    28,853.89x = 39,820.37 × 16,109.58
  4. Step 4: Simplify right side
    28,853.89x = 641,489,436.14
  5. Step 5: Solve for x
    x = 641,489,436.14/28,853.89
  6. Step 6: Final answer
    x = 22,232.34

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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.