Home / 38,565.40-57,783.30-18,801.40

Finding the Fourth Proportional to 38,565.40, 57,783.30 and 18,801.40

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Solution

The fourth proportional to 38,565.40, 57,783.30 and 18,801.40 is: 28,170.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,565.40 : 57,783.30 = 18,801.40 : x
  2. Step 2: Convert to fraction form
    38,565.40/57,783.30 = 18,801.40/x
  3. Step 3: Cross multiply
    38,565.40x = 57,783.30 × 18,801.40
  4. Step 4: Simplify right side
    38,565.40x = 1,086,406,936.62
  5. Step 5: Solve for x
    x = 1,086,406,936.62/38,565.40
  6. Step 6: Final answer
    x = 28,170.51

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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.