Home / 20,128.66-30,194.49-5,337.25

Finding the Fourth Proportional to 20,128.66, 30,194.49 and 5,337.25

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Solution

The fourth proportional to 20,128.66, 30,194.49 and 5,337.25 is: 8,006.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,128.66 : 30,194.49 = 5,337.25 : x
  2. Step 2: Convert to fraction form
    20,128.66/30,194.49 = 5,337.25/x
  3. Step 3: Cross multiply
    20,128.66x = 30,194.49 × 5,337.25
  4. Step 4: Simplify right side
    20,128.66x = 161,155,541.75
  5. Step 5: Solve for x
    x = 161,155,541.75/20,128.66
  6. Step 6: Final answer
    x = 8,006.27

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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.