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Finding the Fourth Proportional to 37,874.40, 52,264.57 and 20,878.62

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Solution

The fourth proportional to 37,874.40, 52,264.57 and 20,878.62 is: 28,811.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,874.40 : 52,264.57 = 20,878.62 : x
  2. Step 2: Convert to fraction form
    37,874.40/52,264.57 = 20,878.62/x
  3. Step 3: Cross multiply
    37,874.40x = 52,264.57 × 20,878.62
  4. Step 4: Simplify right side
    37,874.40x = 1,091,211,997.60
  5. Step 5: Solve for x
    x = 1,091,211,997.60/37,874.40
  6. Step 6: Final answer
    x = 28,811.34

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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.