Home / 31,714.05-47,536.74-20,628.66

Finding the Fourth Proportional to 31,714.05, 47,536.74 and 20,628.66

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Solution

The fourth proportional to 31,714.05, 47,536.74 and 20,628.66 is: 30,920.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,714.05 : 47,536.74 = 20,628.66 : x
  2. Step 2: Convert to fraction form
    31,714.05/47,536.74 = 20,628.66/x
  3. Step 3: Cross multiply
    31,714.05x = 47,536.74 × 20,628.66
  4. Step 4: Simplify right side
    31,714.05x = 980,619,246.97
  5. Step 5: Solve for x
    x = 980,619,246.97/31,714.05
  6. Step 6: Final answer
    x = 30,920.66

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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.