Home / 20,953.44-28,907.48-11,996.10

Finding the Fourth Proportional to 20,953.44, 28,907.48 and 11,996.10

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Solution

The fourth proportional to 20,953.44, 28,907.48 and 11,996.10 is: 16,549.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,953.44 : 28,907.48 = 11,996.10 : x
  2. Step 2: Convert to fraction form
    20,953.44/28,907.48 = 11,996.10/x
  3. Step 3: Cross multiply
    20,953.44x = 28,907.48 × 11,996.10
  4. Step 4: Simplify right side
    20,953.44x = 346,777,020.83
  5. Step 5: Solve for x
    x = 346,777,020.83/20,953.44
  6. Step 6: Final answer
    x = 16,549.88

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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.