Home / 28,319.60-39,077.16-16,383.44

Finding the Fourth Proportional to 28,319.60, 39,077.16 and 16,383.44

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Solution

The fourth proportional to 28,319.60, 39,077.16 and 16,383.44 is: 22,606.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,319.60 : 39,077.16 = 16,383.44 : x
  2. Step 2: Convert to fraction form
    28,319.60/39,077.16 = 16,383.44/x
  3. Step 3: Cross multiply
    28,319.60x = 39,077.16 × 16,383.44
  4. Step 4: Simplify right side
    28,319.60x = 640,218,306.23
  5. Step 5: Solve for x
    x = 640,218,306.23/28,319.60
  6. Step 6: Final answer
    x = 22,606.90

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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.