Home / 37,782.87-52,140.37-20,786.75

Finding the Fourth Proportional to 37,782.87, 52,140.37 and 20,786.75

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Solution

The fourth proportional to 37,782.87, 52,140.37 and 20,786.75 is: 28,685.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,782.87 : 52,140.37 = 20,786.75 : x
  2. Step 2: Convert to fraction form
    37,782.87/52,140.37 = 20,786.75/x
  3. Step 3: Cross multiply
    37,782.87x = 52,140.37 × 20,786.75
  4. Step 4: Simplify right side
    37,782.87x = 1,083,828,732.16
  5. Step 5: Solve for x
    x = 1,083,828,732.16/37,782.87
  6. Step 6: Final answer
    x = 28,685.72

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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.