Home / 20,559.96-28,371.15-11,608.36

Finding the Fourth Proportional to 20,559.96, 28,371.15 and 11,608.36

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Solution

The fourth proportional to 20,559.96, 28,371.15 and 11,608.36 is: 16,018.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,559.96 : 28,371.15 = 11,608.36 : x
  2. Step 2: Convert to fraction form
    20,559.96/28,371.15 = 11,608.36/x
  3. Step 3: Cross multiply
    20,559.96x = 28,371.15 × 11,608.36
  4. Step 4: Simplify right side
    20,559.96x = 329,342,451.89
  5. Step 5: Solve for x
    x = 329,342,451.89/20,559.96
  6. Step 6: Final answer
    x = 16,018.63

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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.