Home / 22,012.95-30,392.37-15,653.64

Finding the Fourth Proportional to 22,012.95, 30,392.37 and 15,653.64

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Solution

The fourth proportional to 22,012.95, 30,392.37 and 15,653.64 is: 21,612.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,012.95 : 30,392.37 = 15,653.64 : x
  2. Step 2: Convert to fraction form
    22,012.95/30,392.37 = 15,653.64/x
  3. Step 3: Cross multiply
    22,012.95x = 30,392.37 × 15,653.64
  4. Step 4: Simplify right side
    22,012.95x = 475,751,218.73
  5. Step 5: Solve for x
    x = 475,751,218.73/22,012.95
  6. Step 6: Final answer
    x = 21,612.33

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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.