Home / 37,780.84-52,138.26-20,785.72

Finding the Fourth Proportional to 37,780.84, 52,138.26 and 20,785.72

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Solution

The fourth proportional to 37,780.84, 52,138.26 and 20,785.72 is: 28,684.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,780.84 : 52,138.26 = 20,785.72 : x
  2. Step 2: Convert to fraction form
    37,780.84/52,138.26 = 20,785.72/x
  3. Step 3: Cross multiply
    37,780.84x = 52,138.26 × 20,785.72
  4. Step 4: Simplify right side
    37,780.84x = 1,083,731,273.65
  5. Step 5: Solve for x
    x = 1,083,731,273.65/37,780.84
  6. Step 6: Final answer
    x = 28,684.68

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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.