Home / 20,551.10-30,828.02-5,760.60

Finding the Fourth Proportional to 20,551.10, 30,828.02 and 5,760.60

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Solution

The fourth proportional to 20,551.10, 30,828.02 and 5,760.60 is: 8,641.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,551.10 : 30,828.02 = 5,760.60 : x
  2. Step 2: Convert to fraction form
    20,551.10/30,828.02 = 5,760.60/x
  3. Step 3: Cross multiply
    20,551.10x = 30,828.02 × 5,760.60
  4. Step 4: Simplify right side
    20,551.10x = 177,587,863.21
  5. Step 5: Solve for x
    x = 177,587,863.21/20,551.10
  6. Step 6: Final answer
    x = 8,641.28

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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.