Home / 22,057.63-30,439.53-12,121.63

Finding the Fourth Proportional to 22,057.63, 30,439.53 and 12,121.63

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Solution

The fourth proportional to 22,057.63, 30,439.53 and 12,121.63 is: 16,727.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,057.63 : 30,439.53 = 12,121.63 : x
  2. Step 2: Convert to fraction form
    22,057.63/30,439.53 = 12,121.63/x
  3. Step 3: Cross multiply
    22,057.63x = 30,439.53 × 12,121.63
  4. Step 4: Simplify right side
    22,057.63x = 368,976,507.23
  5. Step 5: Solve for x
    x = 368,976,507.23/22,057.63
  6. Step 6: Final answer
    x = 16,727.84

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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.