Home / 39,138.78-58,706.94-9,556.76

Finding the Fourth Proportional to 39,138.78, 58,706.94 and 9,556.76

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Solution

The fourth proportional to 39,138.78, 58,706.94 and 9,556.76 is: 14,334.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,138.78 : 58,706.94 = 9,556.76 : x
  2. Step 2: Convert to fraction form
    39,138.78/58,706.94 = 9,556.76/x
  3. Step 3: Cross multiply
    39,138.78x = 58,706.94 × 9,556.76
  4. Step 4: Simplify right side
    39,138.78x = 561,048,135.91
  5. Step 5: Solve for x
    x = 561,048,135.91/39,138.78
  6. Step 6: Final answer
    x = 14,334.84

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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.