Home / 28,464.82-42,712.74-19,112.64

Finding the Fourth Proportional to 28,464.82, 42,712.74 and 19,112.64

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Solution

The fourth proportional to 28,464.82, 42,712.74 and 19,112.64 is: 28,679.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,464.82 : 42,712.74 = 19,112.64 : x
  2. Step 2: Convert to fraction form
    28,464.82/42,712.74 = 19,112.64/x
  3. Step 3: Cross multiply
    28,464.82x = 42,712.74 × 19,112.64
  4. Step 4: Simplify right side
    28,464.82x = 816,353,223.03
  5. Step 5: Solve for x
    x = 816,353,223.03/28,464.82
  6. Step 6: Final answer
    x = 28,679.37

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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.