Home / 22,013.20-33,019.80-11,515.60

Finding the Fourth Proportional to 22,013.20, 33,019.80 and 11,515.60

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Solution

The fourth proportional to 22,013.20, 33,019.80 and 11,515.60 is: 17,273.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,013.20 : 33,019.80 = 11,515.60 : x
  2. Step 2: Convert to fraction form
    22,013.20/33,019.80 = 11,515.60/x
  3. Step 3: Cross multiply
    22,013.20x = 33,019.80 × 11,515.60
  4. Step 4: Simplify right side
    22,013.20x = 380,242,808.88
  5. Step 5: Solve for x
    x = 380,242,808.88/22,013.20
  6. Step 6: Final answer
    x = 17,273.40

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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.