Home / 20,762.72-28,651.48-11,329.46

Finding the Fourth Proportional to 20,762.72, 28,651.48 and 11,329.46

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Solution

The fourth proportional to 20,762.72, 28,651.48 and 11,329.46 is: 15,634.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,762.72 : 28,651.48 = 11,329.46 : x
  2. Step 2: Convert to fraction form
    20,762.72/28,651.48 = 11,329.46/x
  3. Step 3: Cross multiply
    20,762.72x = 28,651.48 × 11,329.46
  4. Step 4: Simplify right side
    20,762.72x = 324,605,625.02
  5. Step 5: Solve for x
    x = 324,605,625.02/20,762.72
  6. Step 6: Final answer
    x = 15,634.06

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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.