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Finding the Fourth Proportional to 27,323.79, 40,985.64 and 8,605.41

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Solution

The fourth proportional to 27,323.79, 40,985.64 and 8,605.41 is: 12,908.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,323.79 : 40,985.64 = 8,605.41 : x
  2. Step 2: Convert to fraction form
    27,323.79/40,985.64 = 8,605.41/x
  3. Step 3: Cross multiply
    27,323.79x = 40,985.64 × 8,605.41
  4. Step 4: Simplify right side
    27,323.79x = 352,698,236.31
  5. Step 5: Solve for x
    x = 352,698,236.31/27,323.79
  6. Step 6: Final answer
    x = 12,908.10

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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.