Home / 20,370.42-30,546.72-12,052.80

Finding the Fourth Proportional to 20,370.42, 30,546.72 and 12,052.80

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Solution

The fourth proportional to 20,370.42, 30,546.72 and 12,052.80 is: 18,073.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,370.42 : 30,546.72 = 12,052.80 : x
  2. Step 2: Convert to fraction form
    20,370.42/30,546.72 = 12,052.80/x
  3. Step 3: Cross multiply
    20,370.42x = 30,546.72 × 12,052.80
  4. Step 4: Simplify right side
    20,370.42x = 368,173,506.82
  5. Step 5: Solve for x
    x = 368,173,506.82/20,370.42
  6. Step 6: Final answer
    x = 18,073.93

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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.