Home / 21,253.74-29,329.62-11,562.96

Finding the Fourth Proportional to 21,253.74, 29,329.62 and 11,562.96

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Solution

The fourth proportional to 21,253.74, 29,329.62 and 11,562.96 is: 15,956.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,253.74 : 29,329.62 = 11,562.96 : x
  2. Step 2: Convert to fraction form
    21,253.74/29,329.62 = 11,562.96/x
  3. Step 3: Cross multiply
    21,253.74x = 29,329.62 × 11,562.96
  4. Step 4: Simplify right side
    21,253.74x = 339,137,222.88
  5. Step 5: Solve for x
    x = 339,137,222.88/21,253.74
  6. Step 6: Final answer
    x = 15,956.59

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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.