Home / 39,855.70-55,000.38-22,631.25

Finding the Fourth Proportional to 39,855.70, 55,000.38 and 22,631.25

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Solution

The fourth proportional to 39,855.70, 55,000.38 and 22,631.25 is: 31,230.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,855.70 : 55,000.38 = 22,631.25 : x
  2. Step 2: Convert to fraction form
    39,855.70/55,000.38 = 22,631.25/x
  3. Step 3: Cross multiply
    39,855.70x = 55,000.38 × 22,631.25
  4. Step 4: Simplify right side
    39,855.70x = 1,244,727,349.88
  5. Step 5: Solve for x
    x = 1,244,727,349.88/39,855.70
  6. Step 6: Final answer
    x = 31,230.85

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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.