Home / 22,418.51-30,936.93-12,860.00

Finding the Fourth Proportional to 22,418.51, 30,936.93 and 12,860.00

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Solution

The fourth proportional to 22,418.51, 30,936.93 and 12,860.00 is: 17,746.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,418.51 : 30,936.93 = 12,860.00 : x
  2. Step 2: Convert to fraction form
    22,418.51/30,936.93 = 12,860.00/x
  3. Step 3: Cross multiply
    22,418.51x = 30,936.93 × 12,860.00
  4. Step 4: Simplify right side
    22,418.51x = 397,848,765.12
  5. Step 5: Solve for x
    x = 397,848,765.12/22,418.51
  6. Step 6: Final answer
    x = 17,746.44

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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.