Home / 25,921.36-35,770.44-15,173.20

Finding the Fourth Proportional to 25,921.36, 35,770.44 and 15,173.20

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Solution

The fourth proportional to 25,921.36, 35,770.44 and 15,173.20 is: 20,938.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,921.36 : 35,770.44 = 15,173.20 : x
  2. Step 2: Convert to fraction form
    25,921.36/35,770.44 = 15,173.20/x
  3. Step 3: Cross multiply
    25,921.36x = 35,770.44 × 15,173.20
  4. Step 4: Simplify right side
    25,921.36x = 542,752,040.21
  5. Step 5: Solve for x
    x = 542,752,040.21/25,921.36
  6. Step 6: Final answer
    x = 20,938.41

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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.