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Finding the Fourth Proportional to 37,137.90, 51,250.30 and 20,370.90

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Solution

The fourth proportional to 37,137.90, 51,250.30 and 20,370.90 is: 28,111.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,137.90 : 51,250.30 = 20,370.90 : x
  2. Step 2: Convert to fraction form
    37,137.90/51,250.30 = 20,370.90/x
  3. Step 3: Cross multiply
    37,137.90x = 51,250.30 × 20,370.90
  4. Step 4: Simplify right side
    37,137.90x = 1,044,014,736.27
  5. Step 5: Solve for x
    x = 1,044,014,736.27/37,137.90
  6. Step 6: Final answer
    x = 28,111.84

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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.