Home / 37,785.87-52,142.25-20,789.49

Finding the Fourth Proportional to 37,785.87, 52,142.25 and 20,789.49

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Solution

The fourth proportional to 37,785.87, 52,142.25 and 20,789.49 is: 28,688.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,785.87 : 52,142.25 = 20,789.49 : x
  2. Step 2: Convert to fraction form
    37,785.87/52,142.25 = 20,789.49/x
  3. Step 3: Cross multiply
    37,785.87x = 52,142.25 × 20,789.49
  4. Step 4: Simplify right side
    37,785.87x = 1,084,010,784.95
  5. Step 5: Solve for x
    x = 1,084,010,784.95/37,785.87
  6. Step 6: Final answer
    x = 28,688.26

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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.