Home / 28,385.76-39,181.44-17,768.64

Finding the Fourth Proportional to 28,385.76, 39,181.44 and 17,768.64

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Solution

The fourth proportional to 28,385.76, 39,181.44 and 17,768.64 is: 24,526.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,385.76 : 39,181.44 = 17,768.64 : x
  2. Step 2: Convert to fraction form
    28,385.76/39,181.44 = 17,768.64/x
  3. Step 3: Cross multiply
    28,385.76x = 39,181.44 × 17,768.64
  4. Step 4: Simplify right side
    28,385.76x = 696,200,902.04
  5. Step 5: Solve for x
    x = 696,200,902.04/28,385.76
  6. Step 6: Final answer
    x = 24,526.41

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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.