Home / 20,858.70-31,247.73-11,596.62

Finding the Fourth Proportional to 20,858.70, 31,247.73 and 11,596.62

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Solution

The fourth proportional to 20,858.70, 31,247.73 and 11,596.62 is: 17,372.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,858.70 : 31,247.73 = 11,596.62 : x
  2. Step 2: Convert to fraction form
    20,858.70/31,247.73 = 11,596.62/x
  3. Step 3: Cross multiply
    20,858.70x = 31,247.73 × 11,596.62
  4. Step 4: Simplify right side
    20,858.70x = 362,368,050.67
  5. Step 5: Solve for x
    x = 362,368,050.67/20,858.70
  6. Step 6: Final answer
    x = 17,372.51

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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.