Home / 20,694.55-28,561.48-11,620.93

Finding the Fourth Proportional to 20,694.55, 28,561.48 and 11,620.93

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Solution

The fourth proportional to 20,694.55, 28,561.48 and 11,620.93 is: 16,038.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,694.55 : 28,561.48 = 11,620.93 : x
  2. Step 2: Convert to fraction form
    20,694.55/28,561.48 = 11,620.93/x
  3. Step 3: Cross multiply
    20,694.55x = 28,561.48 × 11,620.93
  4. Step 4: Simplify right side
    20,694.55x = 331,910,959.78
  5. Step 5: Solve for x
    x = 331,910,959.78/20,694.55
  6. Step 6: Final answer
    x = 16,038.57

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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.