Home / 38,383.20-57,477.60-28,468.80

Finding the Fourth Proportional to 38,383.20, 57,477.60 and 28,468.80

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Solution

The fourth proportional to 38,383.20, 57,477.60 and 28,468.80 is: 42,631.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,383.20 : 57,477.60 = 28,468.80 : x
  2. Step 2: Convert to fraction form
    38,383.20/57,477.60 = 28,468.80/x
  3. Step 3: Cross multiply
    38,383.20x = 57,477.60 × 28,468.80
  4. Step 4: Simplify right side
    38,383.20x = 1,636,318,298.88
  5. Step 5: Solve for x
    x = 1,636,318,298.88/38,383.20
  6. Step 6: Final answer
    x = 42,631.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.