Home / 28,230.96-42,360.21-11,595.99

Finding the Fourth Proportional to 28,230.96, 42,360.21 and 11,595.99

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Solution

The fourth proportional to 28,230.96, 42,360.21 and 11,595.99 is: 17,399.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,230.96 : 42,360.21 = 11,595.99 : x
  2. Step 2: Convert to fraction form
    28,230.96/42,360.21 = 11,595.99/x
  3. Step 3: Cross multiply
    28,230.96x = 42,360.21 × 11,595.99
  4. Step 4: Simplify right side
    28,230.96x = 491,208,571.56
  5. Step 5: Solve for x
    x = 491,208,571.56/28,230.96
  6. Step 6: Final answer
    x = 17,399.64

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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.