Home / 20,232.26-27,925-13,146.38

Finding the Fourth Proportional to 20,232.26, 27,925 and 13,146.38

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Solution

The fourth proportional to 20,232.26, 27,925 and 13,146.38 is: 18,144.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,232.26 : 27,925 = 13,146.38 : x
  2. Step 2: Convert to fraction form
    20,232.26/27,925 = 13,146.38/x
  3. Step 3: Cross multiply
    20,232.26x = 27,925 × 13,146.38
  4. Step 4: Simplify right side
    20,232.26x = 367,112,661.50
  5. Step 5: Solve for x
    x = 367,112,661.50/20,232.26
  6. Step 6: Final answer
    x = 18,144.92

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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.