Home / 20,994-28,965.97-14,613.43

Finding the Fourth Proportional to 20,994, 28,965.97 and 14,613.43

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Solution

The fourth proportional to 20,994, 28,965.97 and 14,613.43 is: 20,162.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,994 : 28,965.97 = 14,613.43 : x
  2. Step 2: Convert to fraction form
    20,994/28,965.97 = 14,613.43/x
  3. Step 3: Cross multiply
    20,994x = 28,965.97 × 14,613.43
  4. Step 4: Simplify right side
    20,994x = 423,292,174.98
  5. Step 5: Solve for x
    x = 423,292,174.98/20,994
  6. Step 6: Final answer
    x = 20,162.53

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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.