Home / 22,261.50-30,720.87-12,325.50

Finding the Fourth Proportional to 22,261.50, 30,720.87 and 12,325.50

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Solution

The fourth proportional to 22,261.50, 30,720.87 and 12,325.50 is: 17,009.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,261.50 : 30,720.87 = 12,325.50 : x
  2. Step 2: Convert to fraction form
    22,261.50/30,720.87 = 12,325.50/x
  3. Step 3: Cross multiply
    22,261.50x = 30,720.87 × 12,325.50
  4. Step 4: Simplify right side
    22,261.50x = 378,650,083.19
  5. Step 5: Solve for x
    x = 378,650,083.19/22,261.50
  6. Step 6: Final answer
    x = 17,009.19

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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.