Home / 20,143.26-30,218.00-10,277.19

Finding the Fourth Proportional to 20,143.26, 30,218.00 and 10,277.19

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Solution

The fourth proportional to 20,143.26, 30,218.00 and 10,277.19 is: 15,417.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,143.26 : 30,218.00 = 10,277.19 : x
  2. Step 2: Convert to fraction form
    20,143.26/30,218.00 = 10,277.19/x
  3. Step 3: Cross multiply
    20,143.26x = 30,218.00 × 10,277.19
  4. Step 4: Simplify right side
    20,143.26x = 310,556,076.03
  5. Step 5: Solve for x
    x = 310,556,076.03/20,143.26
  6. Step 6: Final answer
    x = 15,417.37

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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.