Home / 39,115.82-58,650.30-12,450.29

Finding the Fourth Proportional to 39,115.82, 58,650.30 and 12,450.29

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Solution

The fourth proportional to 39,115.82, 58,650.30 and 12,450.29 is: 18,667.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,115.82 : 58,650.30 = 12,450.29 : x
  2. Step 2: Convert to fraction form
    39,115.82/58,650.30 = 12,450.29/x
  3. Step 3: Cross multiply
    39,115.82x = 58,650.30 × 12,450.29
  4. Step 4: Simplify right side
    39,115.82x = 730,212,888.08
  5. Step 5: Solve for x
    x = 730,212,888.08/39,115.82
  6. Step 6: Final answer
    x = 18,667.97

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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.