Home / 39,457.38-59,199.91-20,472.89

Finding the Fourth Proportional to 39,457.38, 59,199.91 and 20,472.89

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Solution

The fourth proportional to 39,457.38, 59,199.91 and 20,472.89 is: 30,716.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,457.38 : 59,199.91 = 20,472.89 : x
  2. Step 2: Convert to fraction form
    39,457.38/59,199.91 = 20,472.89/x
  3. Step 3: Cross multiply
    39,457.38x = 59,199.91 × 20,472.89
  4. Step 4: Simplify right side
    39,457.38x = 1,211,993,245.44
  5. Step 5: Solve for x
    x = 1,211,993,245.44/39,457.38
  6. Step 6: Final answer
    x = 30,716.52

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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.