Home / 20,238.26-27,933.28-13,152.38

Finding the Fourth Proportional to 20,238.26, 27,933.28 and 13,152.38

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Solution

The fourth proportional to 20,238.26, 27,933.28 and 13,152.38 is: 18,153.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,238.26 : 27,933.28 = 13,152.38 : x
  2. Step 2: Convert to fraction form
    20,238.26/27,933.28 = 13,152.38/x
  3. Step 3: Cross multiply
    20,238.26x = 27,933.28 × 13,152.38
  4. Step 4: Simplify right side
    20,238.26x = 367,389,113.21
  5. Step 5: Solve for x
    x = 367,389,113.21/20,238.26
  6. Step 6: Final answer
    x = 18,153.20

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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.