Home / 21,804.87-30,090.36-12,244.85

Finding the Fourth Proportional to 21,804.87, 30,090.36 and 12,244.85

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Solution

The fourth proportional to 21,804.87, 30,090.36 and 12,244.85 is: 16,897.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,804.87 : 30,090.36 = 12,244.85 : x
  2. Step 2: Convert to fraction form
    21,804.87/30,090.36 = 12,244.85/x
  3. Step 3: Cross multiply
    21,804.87x = 30,090.36 × 12,244.85
  4. Step 4: Simplify right side
    21,804.87x = 368,451,869.42
  5. Step 5: Solve for x
    x = 368,451,869.42/21,804.87
  6. Step 6: Final answer
    x = 16,897.69

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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.