Home / 38,078.80-57,100.44-20,305.04

Finding the Fourth Proportional to 38,078.80, 57,100.44 and 20,305.04

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Solution

The fourth proportional to 38,078.80, 57,100.44 and 20,305.04 is: 30,448.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,078.80 : 57,100.44 = 20,305.04 : x
  2. Step 2: Convert to fraction form
    38,078.80/57,100.44 = 20,305.04/x
  3. Step 3: Cross multiply
    38,078.80x = 57,100.44 × 20,305.04
  4. Step 4: Simplify right side
    38,078.80x = 1,159,426,718.22
  5. Step 5: Solve for x
    x = 1,159,426,718.22/38,078.80
  6. Step 6: Final answer
    x = 30,448.09

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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.