Home / 38,107.58-57,134.64-20,588.90

Finding the Fourth Proportional to 38,107.58, 57,134.64 and 20,588.90

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Solution

The fourth proportional to 38,107.58, 57,134.64 and 20,588.90 is: 30,868.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,107.58 : 57,134.64 = 20,588.90 : x
  2. Step 2: Convert to fraction form
    38,107.58/57,134.64 = 20,588.90/x
  3. Step 3: Cross multiply
    38,107.58x = 57,134.64 × 20,588.90
  4. Step 4: Simplify right side
    38,107.58x = 1,176,339,389.50
  5. Step 5: Solve for x
    x = 1,176,339,389.50/38,107.58
  6. Step 6: Final answer
    x = 30,868.91

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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.