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Finding the Fourth Proportional to 21,804.10, 32,706.15 and 5,388.10

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Solution

The fourth proportional to 21,804.10, 32,706.15 and 5,388.10 is: 8,082.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,804.10 : 32,706.15 = 5,388.10 : x
  2. Step 2: Convert to fraction form
    21,804.10/32,706.15 = 5,388.10/x
  3. Step 3: Cross multiply
    21,804.10x = 32,706.15 × 5,388.10
  4. Step 4: Simplify right side
    21,804.10x = 176,224,006.82
  5. Step 5: Solve for x
    x = 176,224,006.82/21,804.10
  6. Step 6: Final answer
    x = 8,082.15

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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.