Home / 20,615.98-28,452.73-11,544.79

Finding the Fourth Proportional to 20,615.98, 28,452.73 and 11,544.79

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Solution

The fourth proportional to 20,615.98, 28,452.73 and 11,544.79 is: 15,933.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,615.98 : 28,452.73 = 11,544.79 : x
  2. Step 2: Convert to fraction form
    20,615.98/28,452.73 = 11,544.79/x
  3. Step 3: Cross multiply
    20,615.98x = 28,452.73 × 11,544.79
  4. Step 4: Simplify right side
    20,615.98x = 328,480,799.48
  5. Step 5: Solve for x
    x = 328,480,799.48/20,615.98
  6. Step 6: Final answer
    x = 15,933.31

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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.