Home / 20,466.12-30,723.72-13,872.30

Finding the Fourth Proportional to 20,466.12, 30,723.72 and 13,872.30

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Solution

The fourth proportional to 20,466.12, 30,723.72 and 13,872.30 is: 20,825.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,466.12 : 30,723.72 = 13,872.30 : x
  2. Step 2: Convert to fraction form
    20,466.12/30,723.72 = 13,872.30/x
  3. Step 3: Cross multiply
    20,466.12x = 30,723.72 × 13,872.30
  4. Step 4: Simplify right side
    20,466.12x = 426,208,660.96
  5. Step 5: Solve for x
    x = 426,208,660.96/20,466.12
  6. Step 6: Final answer
    x = 20,825.08

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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.