Home / 27,111.51-40,662.65-7,385.45

Finding the Fourth Proportional to 27,111.51, 40,662.65 and 7,385.45

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Solution

The fourth proportional to 27,111.51, 40,662.65 and 7,385.45 is: 11,076.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,111.51 : 40,662.65 = 7,385.45 : x
  2. Step 2: Convert to fraction form
    27,111.51/40,662.65 = 7,385.45/x
  3. Step 3: Cross multiply
    27,111.51x = 40,662.65 × 7,385.45
  4. Step 4: Simplify right side
    27,111.51x = 300,311,968.44
  5. Step 5: Solve for x
    x = 300,311,968.44/27,111.51
  6. Step 6: Final answer
    x = 11,076.92

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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.