Home / 20,741.84-28,624.41-11,668.77

Finding the Fourth Proportional to 20,741.84, 28,624.41 and 11,668.77

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Solution

The fourth proportional to 20,741.84, 28,624.41 and 11,668.77 is: 16,103.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,741.84 : 28,624.41 = 11,668.77 : x
  2. Step 2: Convert to fraction form
    20,741.84/28,624.41 = 11,668.77/x
  3. Step 3: Cross multiply
    20,741.84x = 28,624.41 × 11,668.77
  4. Step 4: Simplify right side
    20,741.84x = 334,011,656.68
  5. Step 5: Solve for x
    x = 334,011,656.68/20,741.84
  6. Step 6: Final answer
    x = 16,103.28

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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.