Home / 31,410.72-43,348.84-19,481.99

Finding the Fourth Proportional to 31,410.72, 43,348.84 and 19,481.99

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Solution

The fourth proportional to 31,410.72, 43,348.84 and 19,481.99 is: 26,886.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,410.72 : 43,348.84 = 19,481.99 : x
  2. Step 2: Convert to fraction form
    31,410.72/43,348.84 = 19,481.99/x
  3. Step 3: Cross multiply
    31,410.72x = 43,348.84 × 19,481.99
  4. Step 4: Simplify right side
    31,410.72x = 844,521,401.94
  5. Step 5: Solve for x
    x = 844,521,401.94/31,410.72
  6. Step 6: Final answer
    x = 26,886.41

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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.