Home / 22,361.63-30,858.39-12,290.06

Finding the Fourth Proportional to 22,361.63, 30,858.39 and 12,290.06

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Solution

The fourth proportional to 22,361.63, 30,858.39 and 12,290.06 is: 16,959.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,361.63 : 30,858.39 = 12,290.06 : x
  2. Step 2: Convert to fraction form
    22,361.63/30,858.39 = 12,290.06/x
  3. Step 3: Cross multiply
    22,361.63x = 30,858.39 × 12,290.06
  4. Step 4: Simplify right side
    22,361.63x = 379,251,541.75
  5. Step 5: Solve for x
    x = 379,251,541.75/22,361.63
  6. Step 6: Final answer
    x = 16,959.93

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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.