Home / 20,441.12-30,662.40-7,962.08

Finding the Fourth Proportional to 20,441.12, 30,662.40 and 7,962.08

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Solution

The fourth proportional to 20,441.12, 30,662.40 and 7,962.08 is: 11,943.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,441.12 : 30,662.40 = 7,962.08 : x
  2. Step 2: Convert to fraction form
    20,441.12/30,662.40 = 7,962.08/x
  3. Step 3: Cross multiply
    20,441.12x = 30,662.40 × 7,962.08
  4. Step 4: Simplify right side
    20,441.12x = 244,136,481.79
  5. Step 5: Solve for x
    x = 244,136,481.79/20,441.12
  6. Step 6: Final answer
    x = 11,943.40

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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.