Home / 38,764.66-58,137.90-12,469.72

Finding the Fourth Proportional to 38,764.66, 58,137.90 and 12,469.72

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Solution

The fourth proportional to 38,764.66, 58,137.90 and 12,469.72 is: 18,701.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,764.66 : 58,137.90 = 12,469.72 : x
  2. Step 2: Convert to fraction form
    38,764.66/58,137.90 = 12,469.72/x
  3. Step 3: Cross multiply
    38,764.66x = 58,137.90 × 12,469.72
  4. Step 4: Simplify right side
    38,764.66x = 724,963,334.39
  5. Step 5: Solve for x
    x = 724,963,334.39/38,764.66
  6. Step 6: Final answer
    x = 18,701.66

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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.