Home / 21,436.83-32,164.43-11,055.87

Finding the Fourth Proportional to 21,436.83, 32,164.43 and 11,055.87

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Solution

The fourth proportional to 21,436.83, 32,164.43 and 11,055.87 is: 16,588.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,436.83 : 32,164.43 = 11,055.87 : x
  2. Step 2: Convert to fraction form
    21,436.83/32,164.43 = 11,055.87/x
  3. Step 3: Cross multiply
    21,436.83x = 32,164.43 × 11,055.87
  4. Step 4: Simplify right side
    21,436.83x = 355,605,756.70
  5. Step 5: Solve for x
    x = 355,605,756.70/21,436.83
  6. Step 6: Final answer
    x = 16,588.54

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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.