Home / 20,694.69-31,039.47-5,904.90

Finding the Fourth Proportional to 20,694.69, 31,039.47 and 5,904.90

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Solution

The fourth proportional to 20,694.69, 31,039.47 and 5,904.90 is: 8,856.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,694.69 : 31,039.47 = 5,904.90 : x
  2. Step 2: Convert to fraction form
    20,694.69/31,039.47 = 5,904.90/x
  3. Step 3: Cross multiply
    20,694.69x = 31,039.47 × 5,904.90
  4. Step 4: Simplify right side
    20,694.69x = 183,284,966.40
  5. Step 5: Solve for x
    x = 183,284,966.40/20,694.69
  6. Step 6: Final answer
    x = 8,856.62

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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.