Home / 20,694.95-31,025.01-8,999.36

Finding the Fourth Proportional to 20,694.95, 31,025.01 and 8,999.36

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Solution

The fourth proportional to 20,694.95, 31,025.01 and 8,999.36 is: 13,491.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,694.95 : 31,025.01 = 8,999.36 : x
  2. Step 2: Convert to fraction form
    20,694.95/31,025.01 = 8,999.36/x
  3. Step 3: Cross multiply
    20,694.95x = 31,025.01 × 8,999.36
  4. Step 4: Simplify right side
    20,694.95x = 279,205,233.99
  5. Step 5: Solve for x
    x = 279,205,233.99/20,694.95
  6. Step 6: Final answer
    x = 13,491.47

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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.