Home / 20,199.73-27,880.53-11,700.48

Finding the Fourth Proportional to 20,199.73, 27,880.53 and 11,700.48

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Solution

The fourth proportional to 20,199.73, 27,880.53 and 11,700.48 is: 16,149.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,199.73 : 27,880.53 = 11,700.48 : x
  2. Step 2: Convert to fraction form
    20,199.73/27,880.53 = 11,700.48/x
  3. Step 3: Cross multiply
    20,199.73x = 27,880.53 × 11,700.48
  4. Step 4: Simplify right side
    20,199.73x = 326,215,583.65
  5. Step 5: Solve for x
    x = 326,215,583.65/20,199.73
  6. Step 6: Final answer
    x = 16,149.50

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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.