Home / 25,991.33-38,980.07-7,270.20

Finding the Fourth Proportional to 25,991.33, 38,980.07 and 7,270.20

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Solution

The fourth proportional to 25,991.33, 38,980.07 and 7,270.20 is: 10,903.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,991.33 : 38,980.07 = 7,270.20 : x
  2. Step 2: Convert to fraction form
    25,991.33/38,980.07 = 7,270.20/x
  3. Step 3: Cross multiply
    25,991.33x = 38,980.07 × 7,270.20
  4. Step 4: Simplify right side
    25,991.33x = 283,393,020.54
  5. Step 5: Solve for x
    x = 283,393,020.54/25,991.33
  6. Step 6: Final answer
    x = 10,903.37

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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.