Home / 19,297.49-28,994.66-12,280.55

Finding the Fourth Proportional to 19,297.49, 28,994.66 and 12,280.55

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Solution

The fourth proportional to 19,297.49, 28,994.66 and 12,280.55 is: 18,451.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,297.49 : 28,994.66 = 12,280.55 : x
  2. Step 2: Convert to fraction form
    19,297.49/28,994.66 = 12,280.55/x
  3. Step 3: Cross multiply
    19,297.49x = 28,994.66 × 12,280.55
  4. Step 4: Simplify right side
    19,297.49x = 356,070,165.49
  5. Step 5: Solve for x
    x = 356,070,165.49/19,297.49
  6. Step 6: Final answer
    x = 18,451.64

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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.