Home / 37,121.20-51,226.32-20,354.20

Finding the Fourth Proportional to 37,121.20, 51,226.32 and 20,354.20

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Solution

The fourth proportional to 37,121.20, 51,226.32 and 20,354.20 is: 28,088.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,121.20 : 51,226.32 = 20,354.20 : x
  2. Step 2: Convert to fraction form
    37,121.20/51,226.32 = 20,354.20/x
  3. Step 3: Cross multiply
    37,121.20x = 51,226.32 × 20,354.20
  4. Step 4: Simplify right side
    37,121.20x = 1,042,670,762.54
  5. Step 5: Solve for x
    x = 1,042,670,762.54/37,121.20
  6. Step 6: Final answer
    x = 28,088.28

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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.