Home / 38,605.84-57,919.72-19,899.58

Finding the Fourth Proportional to 38,605.84, 57,919.72 and 19,899.58

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Solution

The fourth proportional to 38,605.84, 57,919.72 and 19,899.58 is: 29,855.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,605.84 : 57,919.72 = 19,899.58 : x
  2. Step 2: Convert to fraction form
    38,605.84/57,919.72 = 19,899.58/x
  3. Step 3: Cross multiply
    38,605.84x = 57,919.72 × 19,899.58
  4. Step 4: Simplify right side
    38,605.84x = 1,152,578,101.72
  5. Step 5: Solve for x
    x = 1,152,578,101.72/38,605.84
  6. Step 6: Final answer
    x = 29,855.02

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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.