Home / 37,154.56-51,273.92-20,389.12

Finding the Fourth Proportional to 37,154.56, 51,273.92 and 20,389.12

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Solution

The fourth proportional to 37,154.56, 51,273.92 and 20,389.12 is: 28,137.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,154.56 : 51,273.92 = 20,389.12 : x
  2. Step 2: Convert to fraction form
    37,154.56/51,273.92 = 20,389.12/x
  3. Step 3: Cross multiply
    37,154.56x = 51,273.92 × 20,389.12
  4. Step 4: Simplify right side
    37,154.56x = 1,045,430,107.75
  5. Step 5: Solve for x
    x = 1,045,430,107.75/37,154.56
  6. Step 6: Final answer
    x = 28,137.33

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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.