Home / 25,743.34-35,546.48-20,691.37

Finding the Fourth Proportional to 25,743.34, 35,546.48 and 20,691.37

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Solution

The fourth proportional to 25,743.34, 35,546.48 and 20,691.37 is: 28,570.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,743.34 : 35,546.48 = 20,691.37 : x
  2. Step 2: Convert to fraction form
    25,743.34/35,546.48 = 20,691.37/x
  3. Step 3: Cross multiply
    25,743.34x = 35,546.48 × 20,691.37
  4. Step 4: Simplify right side
    25,743.34x = 735,505,369.88
  5. Step 5: Solve for x
    x = 735,505,369.88/25,743.34
  6. Step 6: Final answer
    x = 28,570.70

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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.