Home / 39,115.08-58,672.38-12,819.63

Finding the Fourth Proportional to 39,115.08, 58,672.38 and 12,819.63

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Solution

The fourth proportional to 39,115.08, 58,672.38 and 12,819.63 is: 19,229.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,115.08 : 58,672.38 = 12,819.63 : x
  2. Step 2: Convert to fraction form
    39,115.08/58,672.38 = 12,819.63/x
  3. Step 3: Cross multiply
    39,115.08x = 58,672.38 × 12,819.63
  4. Step 4: Simplify right side
    39,115.08x = 752,158,202.82
  5. Step 5: Solve for x
    x = 752,158,202.82/39,115.08
  6. Step 6: Final answer
    x = 19,229.37

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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.