Home / 39,181.08-58,759.14-12,879.76

Finding the Fourth Proportional to 39,181.08, 58,759.14 and 12,879.76

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Solution

The fourth proportional to 39,181.08, 58,759.14 and 12,879.76 is: 19,315.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,181.08 : 58,759.14 = 12,879.76 : x
  2. Step 2: Convert to fraction form
    39,181.08/58,759.14 = 12,879.76/x
  3. Step 3: Cross multiply
    39,181.08x = 58,759.14 × 12,879.76
  4. Step 4: Simplify right side
    39,181.08x = 756,803,621.01
  5. Step 5: Solve for x
    x = 756,803,621.01/39,181.08
  6. Step 6: Final answer
    x = 19,315.54

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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.