Home / 20,106.73-30,157.96-8,261.75

Finding the Fourth Proportional to 20,106.73, 30,157.96 and 8,261.75

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Solution

The fourth proportional to 20,106.73, 30,157.96 and 8,261.75 is: 12,391.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,106.73 : 30,157.96 = 8,261.75 : x
  2. Step 2: Convert to fraction form
    20,106.73/30,157.96 = 8,261.75/x
  3. Step 3: Cross multiply
    20,106.73x = 30,157.96 × 8,261.75
  4. Step 4: Simplify right side
    20,106.73x = 249,157,526.03
  5. Step 5: Solve for x
    x = 249,157,526.03/20,106.73
  6. Step 6: Final answer
    x = 12,391.75

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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.