Home / 20,146.56-30,226.56-9,759.36

Finding the Fourth Proportional to 20,146.56, 30,226.56 and 9,759.36

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Solution

The fourth proportional to 20,146.56, 30,226.56 and 9,759.36 is: 14,642.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,146.56 : 30,226.56 = 9,759.36 : x
  2. Step 2: Convert to fraction form
    20,146.56/30,226.56 = 9,759.36/x
  3. Step 3: Cross multiply
    20,146.56x = 30,226.56 × 9,759.36
  4. Step 4: Simplify right side
    20,146.56x = 294,991,880.60
  5. Step 5: Solve for x
    x = 294,991,880.60/20,146.56
  6. Step 6: Final answer
    x = 14,642.30

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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.