Home / 39,750.23-54,856.30-21,845.69

Finding the Fourth Proportional to 39,750.23, 54,856.30 and 21,845.69

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Solution

The fourth proportional to 39,750.23, 54,856.30 and 21,845.69 is: 30,147.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,750.23 : 54,856.30 = 21,845.69 : x
  2. Step 2: Convert to fraction form
    39,750.23/54,856.30 = 21,845.69/x
  3. Step 3: Cross multiply
    39,750.23x = 54,856.30 × 21,845.69
  4. Step 4: Simplify right side
    39,750.23x = 1,198,373,724.35
  5. Step 5: Solve for x
    x = 1,198,373,724.35/39,750.23
  6. Step 6: Final answer
    x = 30,147.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.