Home / 21,304.89-29,369.97-14,911.70

Finding the Fourth Proportional to 21,304.89, 29,369.97 and 14,911.70

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Solution

The fourth proportional to 21,304.89, 29,369.97 and 14,911.70 is: 20,556.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,304.89 : 29,369.97 = 14,911.70 : x
  2. Step 2: Convert to fraction form
    21,304.89/29,369.97 = 14,911.70/x
  3. Step 3: Cross multiply
    21,304.89x = 29,369.97 × 14,911.70
  4. Step 4: Simplify right side
    21,304.89x = 437,956,034.80
  5. Step 5: Solve for x
    x = 437,956,034.80/21,304.89
  6. Step 6: Final answer
    x = 20,556.60

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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.