Home / 20,683.56-28,548.42-13,227.24

Finding the Fourth Proportional to 20,683.56, 28,548.42 and 13,227.24

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Solution

The fourth proportional to 20,683.56, 28,548.42 and 13,227.24 is: 18,256.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,683.56 : 28,548.42 = 13,227.24 : x
  2. Step 2: Convert to fraction form
    20,683.56/28,548.42 = 13,227.24/x
  3. Step 3: Cross multiply
    20,683.56x = 28,548.42 × 13,227.24
  4. Step 4: Simplify right side
    20,683.56x = 377,616,802.96
  5. Step 5: Solve for x
    x = 377,616,802.96/20,683.56
  6. Step 6: Final answer
    x = 18,256.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.