Home / 19,258.38-28,892.43-5,407.38

Finding the Fourth Proportional to 19,258.38, 28,892.43 and 5,407.38

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Solution

The fourth proportional to 19,258.38, 28,892.43 and 5,407.38 is: 8,112.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,258.38 : 28,892.43 = 5,407.38 : x
  2. Step 2: Convert to fraction form
    19,258.38/28,892.43 = 5,407.38/x
  3. Step 3: Cross multiply
    19,258.38x = 28,892.43 × 5,407.38
  4. Step 4: Simplify right side
    19,258.38x = 156,232,348.13
  5. Step 5: Solve for x
    x = 156,232,348.13/19,258.38
  6. Step 6: Final answer
    x = 8,112.43

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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.