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Finding the Fourth Proportional to 25,173, 34,738.74 and 13,995

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Solution

The fourth proportional to 25,173, 34,738.74 and 13,995 is: 19,313.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,173 : 34,738.74 = 13,995 : x
  2. Step 2: Convert to fraction form
    25,173/34,738.74 = 13,995/x
  3. Step 3: Cross multiply
    25,173x = 34,738.74 × 13,995
  4. Step 4: Simplify right side
    25,173x = 486,168,666.30
  5. Step 5: Solve for x
    x = 486,168,666.30/25,173
  6. Step 6: Final answer
    x = 19,313.10

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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.