Home / 28,728.52-39,644.96-16,153.26

Finding the Fourth Proportional to 28,728.52, 39,644.96 and 16,153.26

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Solution

The fourth proportional to 28,728.52, 39,644.96 and 16,153.26 is: 22,291.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,728.52 : 39,644.96 = 16,153.26 : x
  2. Step 2: Convert to fraction form
    28,728.52/39,644.96 = 16,153.26/x
  3. Step 3: Cross multiply
    28,728.52x = 39,644.96 × 16,153.26
  4. Step 4: Simplify right side
    28,728.52x = 640,395,346.57
  5. Step 5: Solve for x
    x = 640,395,346.57/28,728.52
  6. Step 6: Final answer
    x = 22,291.28

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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.