Home / 22,121.63-30,527.85-12,185.63

Finding the Fourth Proportional to 22,121.63, 30,527.85 and 12,185.63

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Solution

The fourth proportional to 22,121.63, 30,527.85 and 12,185.63 is: 16,816.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,121.63 : 30,527.85 = 12,185.63 : x
  2. Step 2: Convert to fraction form
    22,121.63/30,527.85 = 12,185.63/x
  3. Step 3: Cross multiply
    22,121.63x = 30,527.85 × 12,185.63
  4. Step 4: Simplify right side
    22,121.63x = 372,000,871.23
  5. Step 5: Solve for x
    x = 372,000,871.23/22,121.63
  6. Step 6: Final answer
    x = 16,816.16

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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.