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Finding the Fourth Proportional to 25,994.84, 38,998 and 12,136.28

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Solution

The fourth proportional to 25,994.84, 38,998 and 12,136.28 is: 18,207.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,994.84 : 38,998 = 12,136.28 : x
  2. Step 2: Convert to fraction form
    25,994.84/38,998 = 12,136.28/x
  3. Step 3: Cross multiply
    25,994.84x = 38,998 × 12,136.28
  4. Step 4: Simplify right side
    25,994.84x = 473,290,647.44
  5. Step 5: Solve for x
    x = 473,290,647.44/25,994.84
  6. Step 6: Final answer
    x = 18,207.10

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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.