Home / 20,773.28-28,666.98-11,341.88

Finding the Fourth Proportional to 20,773.28, 28,666.98 and 11,341.88

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Solution

The fourth proportional to 20,773.28, 28,666.98 and 11,341.88 is: 15,651.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,773.28 : 28,666.98 = 11,341.88 : x
  2. Step 2: Convert to fraction form
    20,773.28/28,666.98 = 11,341.88/x
  3. Step 3: Cross multiply
    20,773.28x = 28,666.98 × 11,341.88
  4. Step 4: Simplify right side
    20,773.28x = 325,137,447.12
  5. Step 5: Solve for x
    x = 325,137,447.12/20,773.28
  6. Step 6: Final answer
    x = 15,651.71

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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.