Home / 20,165.42-30,258.36-9,069.86

Finding the Fourth Proportional to 20,165.42, 30,258.36 and 9,069.86

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Solution

The fourth proportional to 20,165.42, 30,258.36 and 9,069.86 is: 13,609.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,165.42 : 30,258.36 = 9,069.86 : x
  2. Step 2: Convert to fraction form
    20,165.42/30,258.36 = 9,069.86/x
  3. Step 3: Cross multiply
    20,165.42x = 30,258.36 × 9,069.86
  4. Step 4: Simplify right side
    20,165.42x = 274,439,089.03
  5. Step 5: Solve for x
    x = 274,439,089.03/20,165.42
  6. Step 6: Final answer
    x = 13,609.39

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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.