Home / 19,714.36-27,219.09-15,168.96

Finding the Fourth Proportional to 19,714.36, 27,219.09 and 15,168.96

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Solution

The fourth proportional to 19,714.36, 27,219.09 and 15,168.96 is: 20,943.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,714.36 : 27,219.09 = 15,168.96 : x
  2. Step 2: Convert to fraction form
    19,714.36/27,219.09 = 15,168.96/x
  3. Step 3: Cross multiply
    19,714.36x = 27,219.09 × 15,168.96
  4. Step 4: Simplify right side
    19,714.36x = 412,885,287.45
  5. Step 5: Solve for x
    x = 412,885,287.45/19,714.36
  6. Step 6: Final answer
    x = 20,943.38

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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.