Home / 20,855.70-31,243.23-11,593.62

Finding the Fourth Proportional to 20,855.70, 31,243.23 and 11,593.62

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Solution

The fourth proportional to 20,855.70, 31,243.23 and 11,593.62 is: 17,368.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,855.70 : 31,243.23 = 11,593.62 : x
  2. Step 2: Convert to fraction form
    20,855.70/31,243.23 = 11,593.62/x
  3. Step 3: Cross multiply
    20,855.70x = 31,243.23 × 11,593.62
  4. Step 4: Simplify right side
    20,855.70x = 362,222,136.19
  5. Step 5: Solve for x
    x = 362,222,136.19/20,855.70
  6. Step 6: Final answer
    x = 17,368.02

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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.