Home / 20,408.31-30,603.23-7,261.03

Finding the Fourth Proportional to 20,408.31, 30,603.23 and 7,261.03

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Solution

The fourth proportional to 20,408.31, 30,603.23 and 7,261.03 is: 10,888.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,408.31 : 30,603.23 = 7,261.03 : x
  2. Step 2: Convert to fraction form
    20,408.31/30,603.23 = 7,261.03/x
  3. Step 3: Cross multiply
    20,408.31x = 30,603.23 × 7,261.03
  4. Step 4: Simplify right side
    20,408.31x = 222,210,971.13
  5. Step 5: Solve for x
    x = 222,210,971.13/20,408.31
  6. Step 6: Final answer
    x = 10,888.26

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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.