Home / 20,397.80-30,596.70-11,633.60

Finding the Fourth Proportional to 20,397.80, 30,596.70 and 11,633.60

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Solution

The fourth proportional to 20,397.80, 30,596.70 and 11,633.60 is: 17,450.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,397.80 : 30,596.70 = 11,633.60 : x
  2. Step 2: Convert to fraction form
    20,397.80/30,596.70 = 11,633.60/x
  3. Step 3: Cross multiply
    20,397.80x = 30,596.70 × 11,633.60
  4. Step 4: Simplify right side
    20,397.80x = 355,949,769.12
  5. Step 5: Solve for x
    x = 355,949,769.12/20,397.80
  6. Step 6: Final answer
    x = 17,450.40

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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.