Home / 22,205.88-30,639.06-13,256.28

Finding the Fourth Proportional to 22,205.88, 30,639.06 and 13,256.28

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Solution

The fourth proportional to 22,205.88, 30,639.06 and 13,256.28 is: 18,290.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,205.88 : 30,639.06 = 13,256.28 : x
  2. Step 2: Convert to fraction form
    22,205.88/30,639.06 = 13,256.28/x
  3. Step 3: Cross multiply
    22,205.88x = 30,639.06 × 13,256.28
  4. Step 4: Simplify right side
    22,205.88x = 406,159,958.30
  5. Step 5: Solve for x
    x = 406,159,958.30/22,205.88
  6. Step 6: Final answer
    x = 18,290.65

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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.