Home / 20,896.26-31,341.51-7,746.81

Finding the Fourth Proportional to 20,896.26, 31,341.51 and 7,746.81

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Solution

The fourth proportional to 20,896.26, 31,341.51 and 7,746.81 is: 11,619.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,896.26 : 31,341.51 = 7,746.81 : x
  2. Step 2: Convert to fraction form
    20,896.26/31,341.51 = 7,746.81/x
  3. Step 3: Cross multiply
    20,896.26x = 31,341.51 × 7,746.81
  4. Step 4: Simplify right side
    20,896.26x = 242,796,723.08
  5. Step 5: Solve for x
    x = 242,796,723.08/20,896.26
  6. Step 6: Final answer
    x = 11,619.15

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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.