Home / 20,878.56-31,336.20-11,024.46

Finding the Fourth Proportional to 20,878.56, 31,336.20 and 11,024.46

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Solution

The fourth proportional to 20,878.56, 31,336.20 and 11,024.46 is: 16,546.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,878.56 : 31,336.20 = 11,024.46 : x
  2. Step 2: Convert to fraction form
    20,878.56/31,336.20 = 11,024.46/x
  3. Step 3: Cross multiply
    20,878.56x = 31,336.20 × 11,024.46
  4. Step 4: Simplify right side
    20,878.56x = 345,464,683.45
  5. Step 5: Solve for x
    x = 345,464,683.45/20,878.56
  6. Step 6: Final answer
    x = 16,546.38

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1.5x scale

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.