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Finding the Fourth Proportional to 37,873.68, 52,265.67 and 20,878.20

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Solution

The fourth proportional to 37,873.68, 52,265.67 and 20,878.20 is: 28,811.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,873.68 : 52,265.67 = 20,878.20 : x
  2. Step 2: Convert to fraction form
    37,873.68/52,265.67 = 20,878.20/x
  3. Step 3: Cross multiply
    37,873.68x = 52,265.67 × 20,878.20
  4. Step 4: Simplify right side
    37,873.68x = 1,091,213,033.10
  5. Step 5: Solve for x
    x = 1,091,213,033.10/37,873.68
  6. Step 6: Final answer
    x = 28,811.91

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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.