Home / 38,000.80-56,936.40-31,391.20

Finding the Fourth Proportional to 38,000.80, 56,936.40 and 31,391.20

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Solution

The fourth proportional to 38,000.80, 56,936.40 and 31,391.20 is: 47,033.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,000.80 : 56,936.40 = 31,391.20 : x
  2. Step 2: Convert to fraction form
    38,000.80/56,936.40 = 31,391.20/x
  3. Step 3: Cross multiply
    38,000.80x = 56,936.40 × 31,391.20
  4. Step 4: Simplify right side
    38,000.80x = 1,787,301,919.68
  5. Step 5: Solve for x
    x = 1,787,301,919.68/38,000.80
  6. Step 6: Final answer
    x = 47,033.27

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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.