Home / 36,347.05-54,515.78-12,649.54

Finding the Fourth Proportional to 36,347.05, 54,515.78 and 12,649.54

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Solution

The fourth proportional to 36,347.05, 54,515.78 and 12,649.54 is: 18,972.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,347.05 : 54,515.78 = 12,649.54 : x
  2. Step 2: Convert to fraction form
    36,347.05/54,515.78 = 12,649.54/x
  3. Step 3: Cross multiply
    36,347.05x = 54,515.78 × 12,649.54
  4. Step 4: Simplify right side
    36,347.05x = 689,599,203.91
  5. Step 5: Solve for x
    x = 689,599,203.91/36,347.05
  6. Step 6: Final answer
    x = 18,972.63

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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.