Home / 20,299.88-28,012.26-11,347.24

Finding the Fourth Proportional to 20,299.88, 28,012.26 and 11,347.24

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Solution

The fourth proportional to 20,299.88, 28,012.26 and 11,347.24 is: 15,658.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,299.88 : 28,012.26 = 11,347.24 : x
  2. Step 2: Convert to fraction form
    20,299.88/28,012.26 = 11,347.24/x
  3. Step 3: Cross multiply
    20,299.88x = 28,012.26 × 11,347.24
  4. Step 4: Simplify right side
    20,299.88x = 317,861,837.16
  5. Step 5: Solve for x
    x = 317,861,837.16/20,299.88
  6. Step 6: Final answer
    x = 15,658.31

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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.