Home / 22,245.19-30,698.12-12,686.64

Finding the Fourth Proportional to 22,245.19, 30,698.12 and 12,686.64

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Solution

The fourth proportional to 22,245.19, 30,698.12 and 12,686.64 is: 17,507.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,245.19 : 30,698.12 = 12,686.64 : x
  2. Step 2: Convert to fraction form
    22,245.19/30,698.12 = 12,686.64/x
  3. Step 3: Cross multiply
    22,245.19x = 30,698.12 × 12,686.64
  4. Step 4: Simplify right side
    22,245.19x = 389,455,913.72
  5. Step 5: Solve for x
    x = 389,455,913.72/22,245.19
  6. Step 6: Final answer
    x = 17,507.42

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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.