Home / 39,788.20-59,682.30-18,715.14

Finding the Fourth Proportional to 39,788.20, 59,682.30 and 18,715.14

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Solution

The fourth proportional to 39,788.20, 59,682.30 and 18,715.14 is: 28,072.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,788.20 : 59,682.30 = 18,715.14 : x
  2. Step 2: Convert to fraction form
    39,788.20/59,682.30 = 18,715.14/x
  3. Step 3: Cross multiply
    39,788.20x = 59,682.30 × 18,715.14
  4. Step 4: Simplify right side
    39,788.20x = 1,116,962,600.02
  5. Step 5: Solve for x
    x = 1,116,962,600.02/39,788.20
  6. Step 6: Final answer
    x = 28,072.71

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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.