Home / 20,455.36-30,683.04-5,664.27

Finding the Fourth Proportional to 20,455.36, 30,683.04 and 5,664.27

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Solution

The fourth proportional to 20,455.36, 30,683.04 and 5,664.27 is: 8,496.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,455.36 : 30,683.04 = 5,664.27 : x
  2. Step 2: Convert to fraction form
    20,455.36/30,683.04 = 5,664.27/x
  3. Step 3: Cross multiply
    20,455.36x = 30,683.04 × 5,664.27
  4. Step 4: Simplify right side
    20,455.36x = 173,797,116.80
  5. Step 5: Solve for x
    x = 173,797,116.80/20,455.36
  6. Step 6: Final answer
    x = 8,496.41

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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.