Home / 20,452.30-30,668.63-12,133.40

Finding the Fourth Proportional to 20,452.30, 30,668.63 and 12,133.40

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Solution

The fourth proportional to 20,452.30, 30,668.63 and 12,133.40 is: 18,194.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,452.30 : 30,668.63 = 12,133.40 : x
  2. Step 2: Convert to fraction form
    20,452.30/30,668.63 = 12,133.40/x
  3. Step 3: Cross multiply
    20,452.30x = 30,668.63 × 12,133.40
  4. Step 4: Simplify right side
    20,452.30x = 372,114,541.23
  5. Step 5: Solve for x
    x = 372,114,541.23/20,452.30
  6. Step 6: Final answer
    x = 18,194.27

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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.