Home / 21,131.27-29,125.73-16,868.67

Finding the Fourth Proportional to 21,131.27, 29,125.73 and 16,868.67

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Solution

The fourth proportional to 21,131.27, 29,125.73 and 16,868.67 is: 23,250.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,131.27 : 29,125.73 = 16,868.67 : x
  2. Step 2: Convert to fraction form
    21,131.27/29,125.73 = 16,868.67/x
  3. Step 3: Cross multiply
    21,131.27x = 29,125.73 × 16,868.67
  4. Step 4: Simplify right side
    21,131.27x = 491,312,243.54
  5. Step 5: Solve for x
    x = 491,312,243.54/21,131.27
  6. Step 6: Final answer
    x = 23,250.48

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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.