Home / 30,013.88-41,375.22-21,034.24

Finding the Fourth Proportional to 30,013.88, 41,375.22 and 21,034.24

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Solution

The fourth proportional to 30,013.88, 41,375.22 and 21,034.24 is: 28,996.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,013.88 : 41,375.22 = 21,034.24 : x
  2. Step 2: Convert to fraction form
    30,013.88/41,375.22 = 21,034.24/x
  3. Step 3: Cross multiply
    30,013.88x = 41,375.22 × 21,034.24
  4. Step 4: Simplify right side
    30,013.88x = 870,296,307.53
  5. Step 5: Solve for x
    x = 870,296,307.53/30,013.88
  6. Step 6: Final answer
    x = 28,996.46

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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.