Home / 21,918.64-32,850.60-9,424

Finding the Fourth Proportional to 21,918.64, 32,850.60 and 9,424

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Solution

The fourth proportional to 21,918.64, 32,850.60 and 9,424 is: 14,124.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,918.64 : 32,850.60 = 9,424 : x
  2. Step 2: Convert to fraction form
    21,918.64/32,850.60 = 9,424/x
  3. Step 3: Cross multiply
    21,918.64x = 32,850.60 × 9,424
  4. Step 4: Simplify right side
    21,918.64x = 309,584,054.40
  5. Step 5: Solve for x
    x = 309,584,054.40/21,918.64
  6. Step 6: Final answer
    x = 14,124.24

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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.