Home / 20,837.99-28,750.74-11,882.23

Finding the Fourth Proportional to 20,837.99, 28,750.74 and 11,882.23

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Solution

The fourth proportional to 20,837.99, 28,750.74 and 11,882.23 is: 16,394.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,837.99 : 28,750.74 = 11,882.23 : x
  2. Step 2: Convert to fraction form
    20,837.99/28,750.74 = 11,882.23/x
  3. Step 3: Cross multiply
    20,837.99x = 28,750.74 × 11,882.23
  4. Step 4: Simplify right side
    20,837.99x = 341,622,905.35
  5. Step 5: Solve for x
    x = 341,622,905.35/20,837.99
  6. Step 6: Final answer
    x = 16,394.24

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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.