Home / 20,176.36-30,247.53-9,640.42

Finding the Fourth Proportional to 20,176.36, 30,247.53 and 9,640.42

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Solution

The fourth proportional to 20,176.36, 30,247.53 and 9,640.42 is: 14,452.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,176.36 : 30,247.53 = 9,640.42 : x
  2. Step 2: Convert to fraction form
    20,176.36/30,247.53 = 9,640.42/x
  3. Step 3: Cross multiply
    20,176.36x = 30,247.53 × 9,640.42
  4. Step 4: Simplify right side
    20,176.36x = 291,598,893.16
  5. Step 5: Solve for x
    x = 291,598,893.16/20,176.36
  6. Step 6: Final answer
    x = 14,452.50

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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.