Home / 20,260.44-27,959.04-11,307.78

Finding the Fourth Proportional to 20,260.44, 27,959.04 and 11,307.78

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Solution

The fourth proportional to 20,260.44, 27,959.04 and 11,307.78 is: 15,604.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,260.44 : 27,959.04 = 11,307.78 : x
  2. Step 2: Convert to fraction form
    20,260.44/27,959.04 = 11,307.78/x
  3. Step 3: Cross multiply
    20,260.44x = 27,959.04 × 11,307.78
  4. Step 4: Simplify right side
    20,260.44x = 316,154,673.33
  5. Step 5: Solve for x
    x = 316,154,673.33/20,260.44
  6. Step 6: Final answer
    x = 15,604.53

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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.