Home / 20,326.45-30,414.84-12,292.57

Finding the Fourth Proportional to 20,326.45, 30,414.84 and 12,292.57

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Solution

The fourth proportional to 20,326.45, 30,414.84 and 12,292.57 is: 18,393.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,326.45 : 30,414.84 = 12,292.57 : x
  2. Step 2: Convert to fraction form
    20,326.45/30,414.84 = 12,292.57/x
  3. Step 3: Cross multiply
    20,326.45x = 30,414.84 × 12,292.57
  4. Step 4: Simplify right side
    20,326.45x = 373,876,549.74
  5. Step 5: Solve for x
    x = 373,876,549.74/20,326.45
  6. Step 6: Final answer
    x = 18,393.60

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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.