Home / 18,962.64-28,443.84-4,922.64

Finding the Fourth Proportional to 18,962.64, 28,443.84 and 4,922.64

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Solution

The fourth proportional to 18,962.64, 28,443.84 and 4,922.64 is: 7,383.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,962.64 : 28,443.84 = 4,922.64 : x
  2. Step 2: Convert to fraction form
    18,962.64/28,443.84 = 4,922.64/x
  3. Step 3: Cross multiply
    18,962.64x = 28,443.84 × 4,922.64
  4. Step 4: Simplify right side
    18,962.64x = 140,018,784.54
  5. Step 5: Solve for x
    x = 140,018,784.54/18,962.64
  6. Step 6: Final answer
    x = 7,383.93

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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.