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Finding the Fourth Proportional to 21,808.80, 32,706 and 7,014.18

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Solution

The fourth proportional to 21,808.80, 32,706 and 7,014.18 is: 10,518.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,808.80 : 32,706 = 7,014.18 : x
  2. Step 2: Convert to fraction form
    21,808.80/32,706 = 7,014.18/x
  3. Step 3: Cross multiply
    21,808.80x = 32,706 × 7,014.18
  4. Step 4: Simplify right side
    21,808.80x = 229,405,771.08
  5. Step 5: Solve for x
    x = 229,405,771.08/21,808.80
  6. Step 6: Final answer
    x = 10,518.95

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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.