Home / 37,990.90-52,427.26-20,996.34

Finding the Fourth Proportional to 37,990.90, 52,427.26 and 20,996.34

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Solution

The fourth proportional to 37,990.90, 52,427.26 and 20,996.34 is: 28,974.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,990.90 : 52,427.26 = 20,996.34 : x
  2. Step 2: Convert to fraction form
    37,990.90/52,427.26 = 20,996.34/x
  3. Step 3: Cross multiply
    37,990.90x = 52,427.26 × 20,996.34
  4. Step 4: Simplify right side
    37,990.90x = 1,100,780,576.23
  5. Step 5: Solve for x
    x = 1,100,780,576.23/37,990.90
  6. Step 6: Final answer
    x = 28,974.85

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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.