Home / 20,283.85-27,988.94-11,330.24

Finding the Fourth Proportional to 20,283.85, 27,988.94 and 11,330.24

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Solution

The fourth proportional to 20,283.85, 27,988.94 and 11,330.24 is: 15,634.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,283.85 : 27,988.94 = 11,330.24 : x
  2. Step 2: Convert to fraction form
    20,283.85/27,988.94 = 11,330.24/x
  3. Step 3: Cross multiply
    20,283.85x = 27,988.94 × 11,330.24
  4. Step 4: Simplify right side
    20,283.85x = 317,121,350.89
  5. Step 5: Solve for x
    x = 317,121,350.89/20,283.85
  6. Step 6: Final answer
    x = 15,634.18

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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.