Home / 20,606.45-30,896.02-7,457.11

Finding the Fourth Proportional to 20,606.45, 30,896.02 and 7,457.11

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Solution

The fourth proportional to 20,606.45, 30,896.02 and 7,457.11 is: 11,180.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,606.45 : 30,896.02 = 7,457.11 : x
  2. Step 2: Convert to fraction form
    20,606.45/30,896.02 = 7,457.11/x
  3. Step 3: Cross multiply
    20,606.45x = 30,896.02 × 7,457.11
  4. Step 4: Simplify right side
    20,606.45x = 230,395,019.70
  5. Step 5: Solve for x
    x = 230,395,019.70/20,606.45
  6. Step 6: Final answer
    x = 11,180.72

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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.