Home / 38,488.20-57,734.30-18,783.56

Finding the Fourth Proportional to 38,488.20, 57,734.30 and 18,783.56

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Solution

The fourth proportional to 38,488.20, 57,734.30 and 18,783.56 is: 28,176.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,488.20 : 57,734.30 = 18,783.56 : x
  2. Step 2: Convert to fraction form
    38,488.20/57,734.30 = 18,783.56/x
  3. Step 3: Cross multiply
    38,488.20x = 57,734.30 × 18,783.56
  4. Step 4: Simplify right side
    38,488.20x = 1,084,455,688.11
  5. Step 5: Solve for x
    x = 1,084,455,688.11/38,488.20
  6. Step 6: Final answer
    x = 28,176.32

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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.