Home / 27,018.32-40,541.75-19,171.54

Finding the Fourth Proportional to 27,018.32, 40,541.75 and 19,171.54

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Solution

The fourth proportional to 27,018.32, 40,541.75 and 19,171.54 is: 28,767.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,018.32 : 40,541.75 = 19,171.54 : x
  2. Step 2: Convert to fraction form
    27,018.32/40,541.75 = 19,171.54/x
  3. Step 3: Cross multiply
    27,018.32x = 40,541.75 × 19,171.54
  4. Step 4: Simplify right side
    27,018.32x = 777,247,483.23
  5. Step 5: Solve for x
    x = 777,247,483.23/27,018.32
  6. Step 6: Final answer
    x = 28,767.42

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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.