Home / 20,300.99-28,014.36-11,348.42

Finding the Fourth Proportional to 20,300.99, 28,014.36 and 11,348.42

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Solution

The fourth proportional to 20,300.99, 28,014.36 and 11,348.42 is: 15,660.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,300.99 : 28,014.36 = 11,348.42 : x
  2. Step 2: Convert to fraction form
    20,300.99/28,014.36 = 11,348.42/x
  3. Step 3: Cross multiply
    20,300.99x = 28,014.36 × 11,348.42
  4. Step 4: Simplify right side
    20,300.99x = 317,918,583.24
  5. Step 5: Solve for x
    x = 317,918,583.24/20,300.99
  6. Step 6: Final answer
    x = 15,660.25

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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.