Home / 21,405.08-32,093.96-10,289.66

Finding the Fourth Proportional to 21,405.08, 32,093.96 and 10,289.66

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Solution

The fourth proportional to 21,405.08, 32,093.96 and 10,289.66 is: 15,427.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,405.08 : 32,093.96 = 10,289.66 : x
  2. Step 2: Convert to fraction form
    21,405.08/32,093.96 = 10,289.66/x
  3. Step 3: Cross multiply
    21,405.08x = 32,093.96 × 10,289.66
  4. Step 4: Simplify right side
    21,405.08x = 330,235,724.54
  5. Step 5: Solve for x
    x = 330,235,724.54/21,405.08
  6. Step 6: Final answer
    x = 15,427.91

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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.