Home / 20,961.63-28,926.44-11,530.19

Finding the Fourth Proportional to 20,961.63, 28,926.44 and 11,530.19

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Solution

The fourth proportional to 20,961.63, 28,926.44 and 11,530.19 is: 15,911.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,961.63 : 28,926.44 = 11,530.19 : x
  2. Step 2: Convert to fraction form
    20,961.63/28,926.44 = 11,530.19/x
  3. Step 3: Cross multiply
    20,961.63x = 28,926.44 × 11,530.19
  4. Step 4: Simplify right side
    20,961.63x = 333,527,349.22
  5. Step 5: Solve for x
    x = 333,527,349.22/20,961.63
  6. Step 6: Final answer
    x = 15,911.33

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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.