Home / 20,186.42-30,276.05-6,143.04

Finding the Fourth Proportional to 20,186.42, 30,276.05 and 6,143.04

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Solution

The fourth proportional to 20,186.42, 30,276.05 and 6,143.04 is: 9,213.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,186.42 : 30,276.05 = 6,143.04 : x
  2. Step 2: Convert to fraction form
    20,186.42/30,276.05 = 6,143.04/x
  3. Step 3: Cross multiply
    20,186.42x = 30,276.05 × 6,143.04
  4. Step 4: Simplify right side
    20,186.42x = 185,986,955.48
  5. Step 5: Solve for x
    x = 185,986,955.48/20,186.42
  6. Step 6: Final answer
    x = 9,213.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.