Home / 28,996.70-40,034.72-22,270.31

Finding the Fourth Proportional to 28,996.70, 40,034.72 and 22,270.31

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Solution

The fourth proportional to 28,996.70, 40,034.72 and 22,270.31 is: 30,747.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,996.70 : 40,034.72 = 22,270.31 : x
  2. Step 2: Convert to fraction form
    28,996.70/40,034.72 = 22,270.31/x
  3. Step 3: Cross multiply
    28,996.70x = 40,034.72 × 22,270.31
  4. Step 4: Simplify right side
    28,996.70x = 891,585,424.99
  5. Step 5: Solve for x
    x = 891,585,424.99/28,996.70
  6. Step 6: Final answer
    x = 30,747.83

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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.