Home / 20,309.03-30,452.53-9,209.64

Finding the Fourth Proportional to 20,309.03, 30,452.53 and 9,209.64

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Solution

The fourth proportional to 20,309.03, 30,452.53 and 9,209.64 is: 13,809.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,309.03 : 30,452.53 = 9,209.64 : x
  2. Step 2: Convert to fraction form
    20,309.03/30,452.53 = 9,209.64/x
  3. Step 3: Cross multiply
    20,309.03x = 30,452.53 × 9,209.64
  4. Step 4: Simplify right side
    20,309.03x = 280,456,838.39
  5. Step 5: Solve for x
    x = 280,456,838.39/20,309.03
  6. Step 6: Final answer
    x = 13,809.46

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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.