Home / 38,963.45-58,408.19-12,649.79

Finding the Fourth Proportional to 38,963.45, 58,408.19 and 12,649.79

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Solution

The fourth proportional to 38,963.45, 58,408.19 and 12,649.79 is: 18,962.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,963.45 : 58,408.19 = 12,649.79 : x
  2. Step 2: Convert to fraction form
    38,963.45/58,408.19 = 12,649.79/x
  3. Step 3: Cross multiply
    38,963.45x = 58,408.19 × 12,649.79
  4. Step 4: Simplify right side
    38,963.45x = 738,851,274.53
  5. Step 5: Solve for x
    x = 738,851,274.53/38,963.45
  6. Step 6: Final answer
    x = 18,962.68

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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.