Home / 39,800.10-54,922.99-21,650.25

Finding the Fourth Proportional to 39,800.10, 54,922.99 and 21,650.25

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Solution

The fourth proportional to 39,800.10, 54,922.99 and 21,650.25 is: 29,876.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,800.10 : 54,922.99 = 21,650.25 : x
  2. Step 2: Convert to fraction form
    39,800.10/54,922.99 = 21,650.25/x
  3. Step 3: Cross multiply
    39,800.10x = 54,922.99 × 21,650.25
  4. Step 4: Simplify right side
    39,800.10x = 1,189,096,410.12
  5. Step 5: Solve for x
    x = 1,189,096,410.12/39,800.10
  6. Step 6: Final answer
    x = 29,876.72

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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.