Home / 31,191.62-46,781.76-8,999.54

Finding the Fourth Proportional to 31,191.62, 46,781.76 and 8,999.54

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Solution

The fourth proportional to 31,191.62, 46,781.76 and 8,999.54 is: 13,497.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,191.62 : 46,781.76 = 8,999.54 : x
  2. Step 2: Convert to fraction form
    31,191.62/46,781.76 = 8,999.54/x
  3. Step 3: Cross multiply
    31,191.62x = 46,781.76 × 8,999.54
  4. Step 4: Simplify right side
    31,191.62x = 421,014,320.39
  5. Step 5: Solve for x
    x = 421,014,320.39/31,191.62
  6. Step 6: Final answer
    x = 13,497.67

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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.