Home / 43,515.32-60,029.78-28,401

Finding the Fourth Proportional to 43,515.32, 60,029.78 and 28,401

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Solution

The fourth proportional to 43,515.32, 60,029.78 and 28,401 is: 39,179.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,515.32 : 60,029.78 = 28,401 : x
  2. Step 2: Convert to fraction form
    43,515.32/60,029.78 = 28,401/x
  3. Step 3: Cross multiply
    43,515.32x = 60,029.78 × 28,401
  4. Step 4: Simplify right side
    43,515.32x = 1,704,905,781.78
  5. Step 5: Solve for x
    x = 1,704,905,781.78/43,515.32
  6. Step 6: Final answer
    x = 39,179.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.