Home / 13,927.06-20,890.32-3,538.81

Finding the Fourth Proportional to 13,927.06, 20,890.32 and 3,538.81

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Solution

The fourth proportional to 13,927.06, 20,890.32 and 3,538.81 is: 5,308.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,927.06 : 20,890.32 = 3,538.81 : x
  2. Step 2: Convert to fraction form
    13,927.06/20,890.32 = 3,538.81/x
  3. Step 3: Cross multiply
    13,927.06x = 20,890.32 × 3,538.81
  4. Step 4: Simplify right side
    13,927.06x = 73,926,873.32
  5. Step 5: Solve for x
    x = 73,926,873.32/13,927.06
  6. Step 6: Final answer
    x = 5,308.15

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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.