Home / 20,935.30-31,399.44-6,895.48

Finding the Fourth Proportional to 20,935.30, 31,399.44 and 6,895.48

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Solution

The fourth proportional to 20,935.30, 31,399.44 and 6,895.48 is: 10,342.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,935.30 : 31,399.44 = 6,895.48 : x
  2. Step 2: Convert to fraction form
    20,935.30/31,399.44 = 6,895.48/x
  3. Step 3: Cross multiply
    20,935.30x = 31,399.44 × 6,895.48
  4. Step 4: Simplify right side
    20,935.30x = 216,514,210.53
  5. Step 5: Solve for x
    x = 216,514,210.53/20,935.30
  6. Step 6: Final answer
    x = 10,342.06

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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.