Home / 20,259.72-30,378.46-7,110.88

Finding the Fourth Proportional to 20,259.72, 30,378.46 and 7,110.88

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Solution

The fourth proportional to 20,259.72, 30,378.46 and 7,110.88 is: 10,662.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,259.72 : 30,378.46 = 7,110.88 : x
  2. Step 2: Convert to fraction form
    20,259.72/30,378.46 = 7,110.88/x
  3. Step 3: Cross multiply
    20,259.72x = 30,378.46 × 7,110.88
  4. Step 4: Simplify right side
    20,259.72x = 216,017,583.64
  5. Step 5: Solve for x
    x = 216,017,583.64/20,259.72
  6. Step 6: Final answer
    x = 10,662.42

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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.