Home / 28,398.82-42,626.68-11,768.62

Finding the Fourth Proportional to 28,398.82, 42,626.68 and 11,768.62

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Solution

The fourth proportional to 28,398.82, 42,626.68 and 11,768.62 is: 17,664.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,398.82 : 42,626.68 = 11,768.62 : x
  2. Step 2: Convert to fraction form
    28,398.82/42,626.68 = 11,768.62/x
  3. Step 3: Cross multiply
    28,398.82x = 42,626.68 × 11,768.62
  4. Step 4: Simplify right side
    28,398.82x = 501,657,198.78
  5. Step 5: Solve for x
    x = 501,657,198.78/28,398.82
  6. Step 6: Final answer
    x = 17,664.72

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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.