Home / 21,022.50-29,011.06-11,591.68

Finding the Fourth Proportional to 21,022.50, 29,011.06 and 11,591.68

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Solution

The fourth proportional to 21,022.50, 29,011.06 and 11,591.68 is: 15,996.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,022.50 : 29,011.06 = 11,591.68 : x
  2. Step 2: Convert to fraction form
    21,022.50/29,011.06 = 11,591.68/x
  3. Step 3: Cross multiply
    21,022.50x = 29,011.06 × 11,591.68
  4. Step 4: Simplify right side
    21,022.50x = 336,286,923.98
  5. Step 5: Solve for x
    x = 336,286,923.98/21,022.50
  6. Step 6: Final answer
    x = 15,996.52

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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.