Home / 27,811-38,379.99-15,236.56

Finding the Fourth Proportional to 27,811, 38,379.99 and 15,236.56

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Solution

The fourth proportional to 27,811, 38,379.99 and 15,236.56 is: 21,026.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,811 : 38,379.99 = 15,236.56 : x
  2. Step 2: Convert to fraction form
    27,811/38,379.99 = 15,236.56/x
  3. Step 3: Cross multiply
    27,811x = 38,379.99 × 15,236.56
  4. Step 4: Simplify right side
    27,811x = 584,779,020.43
  5. Step 5: Solve for x
    x = 584,779,020.43/27,811
  6. Step 6: Final answer
    x = 21,026.90

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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.