Home / 25,603.70-38,414.56-13,129.60

Finding the Fourth Proportional to 25,603.70, 38,414.56 and 13,129.60

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Solution

The fourth proportional to 25,603.70, 38,414.56 and 13,129.60 is: 19,699.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,603.70 : 38,414.56 = 13,129.60 : x
  2. Step 2: Convert to fraction form
    25,603.70/38,414.56 = 13,129.60/x
  3. Step 3: Cross multiply
    25,603.70x = 38,414.56 × 13,129.60
  4. Step 4: Simplify right side
    25,603.70x = 504,367,806.98
  5. Step 5: Solve for x
    x = 504,367,806.98/25,603.70
  6. Step 6: Final answer
    x = 19,699.02

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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.