Home / 20,072.44-27,731.46-13,818.16

Finding the Fourth Proportional to 20,072.44, 27,731.46 and 13,818.16

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Solution

The fourth proportional to 20,072.44, 27,731.46 and 13,818.16 is: 19,090.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,072.44 : 27,731.46 = 13,818.16 : x
  2. Step 2: Convert to fraction form
    20,072.44/27,731.46 = 13,818.16/x
  3. Step 3: Cross multiply
    20,072.44x = 27,731.46 × 13,818.16
  4. Step 4: Simplify right side
    20,072.44x = 383,197,751.31
  5. Step 5: Solve for x
    x = 383,197,751.31/20,072.44
  6. Step 6: Final answer
    x = 19,090.74

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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.