Home / 31,447.96-47,174.70-8,074.36

Finding the Fourth Proportional to 31,447.96, 47,174.70 and 8,074.36

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Solution

The fourth proportional to 31,447.96, 47,174.70 and 8,074.36 is: 12,112.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,447.96 : 47,174.70 = 8,074.36 : x
  2. Step 2: Convert to fraction form
    31,447.96/47,174.70 = 8,074.36/x
  3. Step 3: Cross multiply
    31,447.96x = 47,174.70 × 8,074.36
  4. Step 4: Simplify right side
    31,447.96x = 380,905,510.69
  5. Step 5: Solve for x
    x = 380,905,510.69/31,447.96
  6. Step 6: Final answer
    x = 12,112.25

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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.