Home / 20,966.56-31,446.41-6,172.02

Finding the Fourth Proportional to 20,966.56, 31,446.41 and 6,172.02

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Solution

The fourth proportional to 20,966.56, 31,446.41 and 6,172.02 is: 9,257.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,966.56 : 31,446.41 = 6,172.02 : x
  2. Step 2: Convert to fraction form
    20,966.56/31,446.41 = 6,172.02/x
  3. Step 3: Cross multiply
    20,966.56x = 31,446.41 × 6,172.02
  4. Step 4: Simplify right side
    20,966.56x = 194,087,840.59
  5. Step 5: Solve for x
    x = 194,087,840.59/20,966.56
  6. Step 6: Final answer
    x = 9,257.02

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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.