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Finding the Fourth Proportional to 27,094.80, 40,569.30 and 21,214.20

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Solution

The fourth proportional to 27,094.80, 40,569.30 and 21,214.20 is: 31,764.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,094.80 : 40,569.30 = 21,214.20 : x
  2. Step 2: Convert to fraction form
    27,094.80/40,569.30 = 21,214.20/x
  3. Step 3: Cross multiply
    27,094.80x = 40,569.30 × 21,214.20
  4. Step 4: Simplify right side
    27,094.80x = 860,645,244.06
  5. Step 5: Solve for x
    x = 860,645,244.06/27,094.80
  6. Step 6: Final answer
    x = 31,764.22

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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.