Home / 22,406.68-30,918.54-12,973.96

Finding the Fourth Proportional to 22,406.68, 30,918.54 and 12,973.96

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Solution

The fourth proportional to 22,406.68, 30,918.54 and 12,973.96 is: 17,902.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,406.68 : 30,918.54 = 12,973.96 : x
  2. Step 2: Convert to fraction form
    22,406.68/30,918.54 = 12,973.96/x
  3. Step 3: Cross multiply
    22,406.68x = 30,918.54 × 12,973.96
  4. Step 4: Simplify right side
    22,406.68x = 401,135,901.22
  5. Step 5: Solve for x
    x = 401,135,901.22/22,406.68
  6. Step 6: Final answer
    x = 17,902.51

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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.