Home / 20,367.54-28,099.08-11,868.39

Finding the Fourth Proportional to 20,367.54, 28,099.08 and 11,868.39

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Solution

The fourth proportional to 20,367.54, 28,099.08 and 11,868.39 is: 16,373.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,367.54 : 28,099.08 = 11,868.39 : x
  2. Step 2: Convert to fraction form
    20,367.54/28,099.08 = 11,868.39/x
  3. Step 3: Cross multiply
    20,367.54x = 28,099.08 × 11,868.39
  4. Step 4: Simplify right side
    20,367.54x = 333,490,840.08
  5. Step 5: Solve for x
    x = 333,490,840.08/20,367.54
  6. Step 6: Final answer
    x = 16,373.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.