Home / 20,714.70-31,072.05-18,576.30

Finding the Fourth Proportional to 20,714.70, 31,072.05 and 18,576.30

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Solution

The fourth proportional to 20,714.70, 31,072.05 and 18,576.30 is: 27,864.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,714.70 : 31,072.05 = 18,576.30 : x
  2. Step 2: Convert to fraction form
    20,714.70/31,072.05 = 18,576.30/x
  3. Step 3: Cross multiply
    20,714.70x = 31,072.05 × 18,576.30
  4. Step 4: Simplify right side
    20,714.70x = 577,203,722.42
  5. Step 5: Solve for x
    x = 577,203,722.42/20,714.70
  6. Step 6: Final answer
    x = 27,864.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.