Home / 20,724.08-28,597.52-12,226.56

Finding the Fourth Proportional to 20,724.08, 28,597.52 and 12,226.56

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Solution

The fourth proportional to 20,724.08, 28,597.52 and 12,226.56 is: 16,871.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,724.08 : 28,597.52 = 12,226.56 : x
  2. Step 2: Convert to fraction form
    20,724.08/28,597.52 = 12,226.56/x
  3. Step 3: Cross multiply
    20,724.08x = 28,597.52 × 12,226.56
  4. Step 4: Simplify right side
    20,724.08x = 349,649,233.00
  5. Step 5: Solve for x
    x = 349,649,233.00/20,724.08
  6. Step 6: Final answer
    x = 16,871.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.