Home / 31,440.96-47,161.28-8,067.36

Finding the Fourth Proportional to 31,440.96, 47,161.28 and 8,067.36

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Solution

The fourth proportional to 31,440.96, 47,161.28 and 8,067.36 is: 12,101.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,440.96 : 47,161.28 = 8,067.36 : x
  2. Step 2: Convert to fraction form
    31,440.96/47,161.28 = 8,067.36/x
  3. Step 3: Cross multiply
    31,440.96x = 47,161.28 × 8,067.36
  4. Step 4: Simplify right side
    31,440.96x = 380,467,023.82
  5. Step 5: Solve for x
    x = 380,467,023.82/31,440.96
  6. Step 6: Final answer
    x = 12,101.00

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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.