Home / 19,682.73-29,515.54-5,639.66

Finding the Fourth Proportional to 19,682.73, 29,515.54 and 5,639.66

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Solution

The fourth proportional to 19,682.73, 29,515.54 and 5,639.66 is: 8,457.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,682.73 : 29,515.54 = 5,639.66 : x
  2. Step 2: Convert to fraction form
    19,682.73/29,515.54 = 5,639.66/x
  3. Step 3: Cross multiply
    19,682.73x = 29,515.54 × 5,639.66
  4. Step 4: Simplify right side
    19,682.73x = 166,457,569.90
  5. Step 5: Solve for x
    x = 166,457,569.90/19,682.73
  6. Step 6: Final answer
    x = 8,457.04

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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.