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Finding the Fourth Proportional to 19,238, 26,548.44 and 10,406

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Solution

The fourth proportional to 19,238, 26,548.44 and 10,406 is: 14,360.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,238 : 26,548.44 = 10,406 : x
  2. Step 2: Convert to fraction form
    19,238/26,548.44 = 10,406/x
  3. Step 3: Cross multiply
    19,238x = 26,548.44 × 10,406
  4. Step 4: Simplify right side
    19,238x = 276,263,066.64
  5. Step 5: Solve for x
    x = 276,263,066.64/19,238
  6. Step 6: Final answer
    x = 14,360.28

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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.