Home / 27,218.61-40,789.63-21,647.23

Finding the Fourth Proportional to 27,218.61, 40,789.63 and 21,647.23

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Solution

The fourth proportional to 27,218.61, 40,789.63 and 21,647.23 is: 32,440.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,218.61 : 40,789.63 = 21,647.23 : x
  2. Step 2: Convert to fraction form
    27,218.61/40,789.63 = 21,647.23/x
  3. Step 3: Cross multiply
    27,218.61x = 40,789.63 × 21,647.23
  4. Step 4: Simplify right side
    27,218.61x = 882,982,580.27
  5. Step 5: Solve for x
    x = 882,982,580.27/27,218.61
  6. Step 6: Final answer
    x = 32,440.39

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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.