Home / 25,160.60-34,704.05-21,357.54

Finding the Fourth Proportional to 25,160.60, 34,704.05 and 21,357.54

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Solution

The fourth proportional to 25,160.60, 34,704.05 and 21,357.54 is: 29,458.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,160.60 : 34,704.05 = 21,357.54 : x
  2. Step 2: Convert to fraction form
    25,160.60/34,704.05 = 21,357.54/x
  3. Step 3: Cross multiply
    25,160.60x = 34,704.05 × 21,357.54
  4. Step 4: Simplify right side
    25,160.60x = 741,193,029.25
  5. Step 5: Solve for x
    x = 741,193,029.25/25,160.60
  6. Step 6: Final answer
    x = 29,458.49

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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.