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Finding the Fourth Proportional to 25,319.82, 37,968.78 and 8,681.49

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Solution

The fourth proportional to 25,319.82, 37,968.78 and 8,681.49 is: 13,018.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,319.82 : 37,968.78 = 8,681.49 : x
  2. Step 2: Convert to fraction form
    25,319.82/37,968.78 = 8,681.49/x
  3. Step 3: Cross multiply
    25,319.82x = 37,968.78 × 8,681.49
  4. Step 4: Simplify right side
    25,319.82x = 329,625,583.88
  5. Step 5: Solve for x
    x = 329,625,583.88/25,319.82
  6. Step 6: Final answer
    x = 13,018.48

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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.