Home / 20,852.67-28,776.72-11,292.66

Finding the Fourth Proportional to 20,852.67, 28,776.72 and 11,292.66

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Solution

The fourth proportional to 20,852.67, 28,776.72 and 11,292.66 is: 15,583.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,852.67 : 28,776.72 = 11,292.66 : x
  2. Step 2: Convert to fraction form
    20,852.67/28,776.72 = 11,292.66/x
  3. Step 3: Cross multiply
    20,852.67x = 28,776.72 × 11,292.66
  4. Step 4: Simplify right side
    20,852.67x = 324,965,714.88
  5. Step 5: Solve for x
    x = 324,965,714.88/20,852.67
  6. Step 6: Final answer
    x = 15,583.89

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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.