Home / 21,552.70-29,756.39-14,758.09

Finding the Fourth Proportional to 21,552.70, 29,756.39 and 14,758.09

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Solution

The fourth proportional to 21,552.70, 29,756.39 and 14,758.09 is: 20,375.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,552.70 : 29,756.39 = 14,758.09 : x
  2. Step 2: Convert to fraction form
    21,552.70/29,756.39 = 14,758.09/x
  3. Step 3: Cross multiply
    21,552.70x = 29,756.39 × 14,758.09
  4. Step 4: Simplify right side
    21,552.70x = 439,147,562.82
  5. Step 5: Solve for x
    x = 439,147,562.82/21,552.70
  6. Step 6: Final answer
    x = 20,375.52

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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.