Home / 28,453.17-42,658.62-13,647.99

Finding the Fourth Proportional to 28,453.17, 42,658.62 and 13,647.99

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Solution

The fourth proportional to 28,453.17, 42,658.62 and 13,647.99 is: 20,461.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,453.17 : 42,658.62 = 13,647.99 : x
  2. Step 2: Convert to fraction form
    28,453.17/42,658.62 = 13,647.99/x
  3. Step 3: Cross multiply
    28,453.17x = 42,658.62 × 13,647.99
  4. Step 4: Simplify right side
    28,453.17x = 582,204,419.17
  5. Step 5: Solve for x
    x = 582,204,419.17/28,453.17
  6. Step 6: Final answer
    x = 20,461.85

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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.