Home / 20,748.50-28,633.65-11,796.38

Finding the Fourth Proportional to 20,748.50, 28,633.65 and 11,796.38

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Solution

The fourth proportional to 20,748.50, 28,633.65 and 11,796.38 is: 16,279.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,748.50 : 28,633.65 = 11,796.38 : x
  2. Step 2: Convert to fraction form
    20,748.50/28,633.65 = 11,796.38/x
  3. Step 3: Cross multiply
    20,748.50x = 28,633.65 × 11,796.38
  4. Step 4: Simplify right side
    20,748.50x = 337,773,416.19
  5. Step 5: Solve for x
    x = 337,773,416.19/20,748.50
  6. Step 6: Final answer
    x = 16,279.41

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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.