Home / 19,406.20-29,059.80-12,812.26

Finding the Fourth Proportional to 19,406.20, 29,059.80 and 12,812.26

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Solution

The fourth proportional to 19,406.20, 29,059.80 and 12,812.26 is: 19,185.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,406.20 : 29,059.80 = 12,812.26 : x
  2. Step 2: Convert to fraction form
    19,406.20/29,059.80 = 12,812.26/x
  3. Step 3: Cross multiply
    19,406.20x = 29,059.80 × 12,812.26
  4. Step 4: Simplify right side
    19,406.20x = 372,321,713.15
  5. Step 5: Solve for x
    x = 372,321,713.15/19,406.20
  6. Step 6: Final answer
    x = 19,185.71

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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.