Home / 20,222.63-27,907.43-11,148.31

Finding the Fourth Proportional to 20,222.63, 27,907.43 and 11,148.31

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Solution

The fourth proportional to 20,222.63, 27,907.43 and 11,148.31 is: 15,384.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,222.63 : 27,907.43 = 11,148.31 : x
  2. Step 2: Convert to fraction form
    20,222.63/27,907.43 = 11,148.31/x
  3. Step 3: Cross multiply
    20,222.63x = 27,907.43 × 11,148.31
  4. Step 4: Simplify right side
    20,222.63x = 311,120,680.94
  5. Step 5: Solve for x
    x = 311,120,680.94/20,222.63
  6. Step 6: Final answer
    x = 15,384.78

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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.