Home / 31,620.39-47,433.38-8,247.03

Finding the Fourth Proportional to 31,620.39, 47,433.38 and 8,247.03

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Solution

The fourth proportional to 31,620.39, 47,433.38 and 8,247.03 is: 12,371.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,620.39 : 47,433.38 = 8,247.03 : x
  2. Step 2: Convert to fraction form
    31,620.39/47,433.38 = 8,247.03/x
  3. Step 3: Cross multiply
    31,620.39x = 47,433.38 × 8,247.03
  4. Step 4: Simplify right side
    31,620.39x = 391,184,466.63
  5. Step 5: Solve for x
    x = 391,184,466.63/31,620.39
  6. Step 6: Final answer
    x = 12,371.27

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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.