Home / 20,446.56-30,669.75-5,655.45

Finding the Fourth Proportional to 20,446.56, 30,669.75 and 5,655.45

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Solution

The fourth proportional to 20,446.56, 30,669.75 and 5,655.45 is: 8,483.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,446.56 : 30,669.75 = 5,655.45 : x
  2. Step 2: Convert to fraction form
    20,446.56/30,669.75 = 5,655.45/x
  3. Step 3: Cross multiply
    20,446.56x = 30,669.75 × 5,655.45
  4. Step 4: Simplify right side
    20,446.56x = 173,451,237.64
  5. Step 5: Solve for x
    x = 173,451,237.64/20,446.56
  6. Step 6: Final answer
    x = 8,483.15

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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.