Home / 21,427.16-32,118.39-8,954.37

Finding the Fourth Proportional to 21,427.16, 32,118.39 and 8,954.37

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Solution

The fourth proportional to 21,427.16, 32,118.39 and 8,954.37 is: 13,422.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,427.16 : 32,118.39 = 8,954.37 : x
  2. Step 2: Convert to fraction form
    21,427.16/32,118.39 = 8,954.37/x
  3. Step 3: Cross multiply
    21,427.16x = 32,118.39 × 8,954.37
  4. Step 4: Simplify right side
    21,427.16x = 287,599,947.86
  5. Step 5: Solve for x
    x = 287,599,947.86/21,427.16
  6. Step 6: Final answer
    x = 13,422.22

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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.