Home / 31,178.72-46,786.51-11,471.10

Finding the Fourth Proportional to 31,178.72, 46,786.51 and 11,471.10

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Solution

The fourth proportional to 31,178.72, 46,786.51 and 11,471.10 is: 17,213.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,178.72 : 46,786.51 = 11,471.10 : x
  2. Step 2: Convert to fraction form
    31,178.72/46,786.51 = 11,471.10/x
  3. Step 3: Cross multiply
    31,178.72x = 46,786.51 × 11,471.10
  4. Step 4: Simplify right side
    31,178.72x = 536,692,734.86
  5. Step 5: Solve for x
    x = 536,692,734.86/31,178.72
  6. Step 6: Final answer
    x = 17,213.43

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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.