Home / 39,038.82-58,536.03-12,379.89

Finding the Fourth Proportional to 39,038.82, 58,536.03 and 12,379.89

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Solution

The fourth proportional to 39,038.82, 58,536.03 and 12,379.89 is: 18,562.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,038.82 : 58,536.03 = 12,379.89 : x
  2. Step 2: Convert to fraction form
    39,038.82/58,536.03 = 12,379.89/x
  3. Step 3: Cross multiply
    39,038.82x = 58,536.03 × 12,379.89
  4. Step 4: Simplify right side
    39,038.82x = 724,669,612.44
  5. Step 5: Solve for x
    x = 724,669,612.44/39,038.82
  6. Step 6: Final answer
    x = 18,562.79

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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.