Home / 20,748.69-28,630.26-11,796.98

Finding the Fourth Proportional to 20,748.69, 28,630.26 and 11,796.98

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Solution

The fourth proportional to 20,748.69, 28,630.26 and 11,796.98 is: 16,278.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,748.69 : 28,630.26 = 11,796.98 : x
  2. Step 2: Convert to fraction form
    20,748.69/28,630.26 = 11,796.98/x
  3. Step 3: Cross multiply
    20,748.69x = 28,630.26 × 11,796.98
  4. Step 4: Simplify right side
    20,748.69x = 337,750,461.46
  5. Step 5: Solve for x
    x = 337,750,461.46/20,748.69
  6. Step 6: Final answer
    x = 16,278.16

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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.