Home / 19,664.68-29,427.70-12,272.60

Finding the Fourth Proportional to 19,664.68, 29,427.70 and 12,272.60

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Solution

The fourth proportional to 19,664.68, 29,427.70 and 12,272.60 is: 18,365.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,664.68 : 29,427.70 = 12,272.60 : x
  2. Step 2: Convert to fraction form
    19,664.68/29,427.70 = 12,272.60/x
  3. Step 3: Cross multiply
    19,664.68x = 29,427.70 × 12,272.60
  4. Step 4: Simplify right side
    19,664.68x = 361,154,391.02
  5. Step 5: Solve for x
    x = 361,154,391.02/19,664.68
  6. Step 6: Final answer
    x = 18,365.64

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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.