Home / 14,428.30-21,642.99-4,039.78

Finding the Fourth Proportional to 14,428.30, 21,642.99 and 4,039.78

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Solution

The fourth proportional to 14,428.30, 21,642.99 and 4,039.78 is: 6,059.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,428.30 : 21,642.99 = 4,039.78 : x
  2. Step 2: Convert to fraction form
    14,428.30/21,642.99 = 4,039.78/x
  3. Step 3: Cross multiply
    14,428.30x = 21,642.99 × 4,039.78
  4. Step 4: Simplify right side
    14,428.30x = 87,432,918.14
  5. Step 5: Solve for x
    x = 87,432,918.14/14,428.30
  6. Step 6: Final answer
    x = 6,059.82

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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.