Home / 31,713.46-43,743.48-20,397.27

Finding the Fourth Proportional to 31,713.46, 43,743.48 and 20,397.27

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Solution

The fourth proportional to 31,713.46, 43,743.48 and 20,397.27 is: 28,134.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,713.46 : 43,743.48 = 20,397.27 : x
  2. Step 2: Convert to fraction form
    31,713.46/43,743.48 = 20,397.27/x
  3. Step 3: Cross multiply
    31,713.46x = 43,743.48 × 20,397.27
  4. Step 4: Simplify right side
    31,713.46x = 892,247,630.67
  5. Step 5: Solve for x
    x = 892,247,630.67/31,713.46
  6. Step 6: Final answer
    x = 28,134.67

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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.