Home / 57,804.92-86,714.32-20,357.25

Finding the Fourth Proportional to 57,804.92, 86,714.32 and 20,357.25

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Solution

The fourth proportional to 57,804.92, 86,714.32 and 20,357.25 is: 30,538.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,804.92 : 86,714.32 = 20,357.25 : x
  2. Step 2: Convert to fraction form
    57,804.92/86,714.32 = 20,357.25/x
  3. Step 3: Cross multiply
    57,804.92x = 86,714.32 × 20,357.25
  4. Step 4: Simplify right side
    57,804.92x = 1,765,265,039.93
  5. Step 5: Solve for x
    x = 1,765,265,039.93/57,804.92
  6. Step 6: Final answer
    x = 30,538.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.