Home / 20,559.06-28,369.89-11,608.74

Finding the Fourth Proportional to 20,559.06, 28,369.89 and 11,608.74

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Solution

The fourth proportional to 20,559.06, 28,369.89 and 11,608.74 is: 16,019.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,559.06 : 28,369.89 = 11,608.74 : x
  2. Step 2: Convert to fraction form
    20,559.06/28,369.89 = 11,608.74/x
  3. Step 3: Cross multiply
    20,559.06x = 28,369.89 × 11,608.74
  4. Step 4: Simplify right side
    20,559.06x = 329,338,676.84
  5. Step 5: Solve for x
    x = 329,338,676.84/20,559.06
  6. Step 6: Final answer
    x = 16,019.15

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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.