Home / 27,087.78-40,625.52-13,040.63

Finding the Fourth Proportional to 27,087.78, 40,625.52 and 13,040.63

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Solution

The fourth proportional to 27,087.78, 40,625.52 and 13,040.63 is: 19,557.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,087.78 : 40,625.52 = 13,040.63 : x
  2. Step 2: Convert to fraction form
    27,087.78/40,625.52 = 13,040.63/x
  3. Step 3: Cross multiply
    27,087.78x = 40,625.52 × 13,040.63
  4. Step 4: Simplify right side
    27,087.78x = 529,782,275.19
  5. Step 5: Solve for x
    x = 529,782,275.19/27,087.78
  6. Step 6: Final answer
    x = 19,557.98

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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.