Home / 21,643.27-32,405.11-11,090.57

Finding the Fourth Proportional to 21,643.27, 32,405.11 and 11,090.57

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Solution

The fourth proportional to 21,643.27, 32,405.11 and 11,090.57 is: 16,605.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,643.27 : 32,405.11 = 11,090.57 : x
  2. Step 2: Convert to fraction form
    21,643.27/32,405.11 = 11,090.57/x
  3. Step 3: Cross multiply
    21,643.27x = 32,405.11 × 11,090.57
  4. Step 4: Simplify right side
    21,643.27x = 359,390,951.06
  5. Step 5: Solve for x
    x = 359,390,951.06/21,643.27
  6. Step 6: Final answer
    x = 16,605.21

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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.