Home / 28,794-43,128.36-13,971.64

Finding the Fourth Proportional to 28,794, 43,128.36 and 13,971.64

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Solution

The fourth proportional to 28,794, 43,128.36 and 13,971.64 is: 20,927.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,794 : 43,128.36 = 13,971.64 : x
  2. Step 2: Convert to fraction form
    28,794/43,128.36 = 13,971.64/x
  3. Step 3: Cross multiply
    28,794x = 43,128.36 × 13,971.64
  4. Step 4: Simplify right side
    28,794x = 602,573,919.71
  5. Step 5: Solve for x
    x = 602,573,919.71/28,794
  6. Step 6: Final answer
    x = 20,927.07

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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.