Home / 22,240.44-30,686.64-13,290.84

Finding the Fourth Proportional to 22,240.44, 30,686.64 and 13,290.84

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Solution

The fourth proportional to 22,240.44, 30,686.64 and 13,290.84 is: 18,338.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,240.44 : 30,686.64 = 13,290.84 : x
  2. Step 2: Convert to fraction form
    22,240.44/30,686.64 = 13,290.84/x
  3. Step 3: Cross multiply
    22,240.44x = 30,686.64 × 13,290.84
  4. Step 4: Simplify right side
    22,240.44x = 407,851,222.38
  5. Step 5: Solve for x
    x = 407,851,222.38/22,240.44
  6. Step 6: Final answer
    x = 18,338.27

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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.