Home / 25,629.10-38,420.85-13,789.24

Finding the Fourth Proportional to 25,629.10, 38,420.85 and 13,789.24

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Solution

The fourth proportional to 25,629.10, 38,420.85 and 13,789.24 is: 20,671.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,629.10 : 38,420.85 = 13,789.24 : x
  2. Step 2: Convert to fraction form
    25,629.10/38,420.85 = 13,789.24/x
  3. Step 3: Cross multiply
    25,629.10x = 38,420.85 × 13,789.24
  4. Step 4: Simplify right side
    25,629.10x = 529,794,321.65
  5. Step 5: Solve for x
    x = 529,794,321.65/25,629.10
  6. Step 6: Final answer
    x = 20,671.59

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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.