Home / 26,252.20-39,364.70-7,781.80

Finding the Fourth Proportional to 26,252.20, 39,364.70 and 7,781.80

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Solution

The fourth proportional to 26,252.20, 39,364.70 and 7,781.80 is: 11,668.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,252.20 : 39,364.70 = 7,781.80 : x
  2. Step 2: Convert to fraction form
    26,252.20/39,364.70 = 7,781.80/x
  3. Step 3: Cross multiply
    26,252.20x = 39,364.70 × 7,781.80
  4. Step 4: Simplify right side
    26,252.20x = 306,328,222.46
  5. Step 5: Solve for x
    x = 306,328,222.46/26,252.20
  6. Step 6: Final answer
    x = 11,668.67

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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.