Home / 37,785.21-52,142.88-20,789.04

Finding the Fourth Proportional to 37,785.21, 52,142.88 and 20,789.04

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Solution

The fourth proportional to 37,785.21, 52,142.88 and 20,789.04 is: 28,688.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,785.21 : 52,142.88 = 20,789.04 : x
  2. Step 2: Convert to fraction form
    37,785.21/52,142.88 = 20,789.04/x
  3. Step 3: Cross multiply
    37,785.21x = 52,142.88 × 20,789.04
  4. Step 4: Simplify right side
    37,785.21x = 1,084,000,418.04
  5. Step 5: Solve for x
    x = 1,084,000,418.04/37,785.21
  6. Step 6: Final answer
    x = 28,688.48

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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.