Home / 21,949.37-30,290.04-11,877.83

Finding the Fourth Proportional to 21,949.37, 30,290.04 and 11,877.83

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Solution

The fourth proportional to 21,949.37, 30,290.04 and 11,877.83 is: 16,391.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,949.37 : 30,290.04 = 11,877.83 : x
  2. Step 2: Convert to fraction form
    21,949.37/30,290.04 = 11,877.83/x
  3. Step 3: Cross multiply
    21,949.37x = 30,290.04 × 11,877.83
  4. Step 4: Simplify right side
    21,949.37x = 359,779,794.36
  5. Step 5: Solve for x
    x = 359,779,794.36/21,949.37
  6. Step 6: Final answer
    x = 16,391.35

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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.