Home / 20,926.08-28,878.16-11,494.64

Finding the Fourth Proportional to 20,926.08, 28,878.16 and 11,494.64

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Solution

The fourth proportional to 20,926.08, 28,878.16 and 11,494.64 is: 15,862.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,926.08 : 28,878.16 = 11,494.64 : x
  2. Step 2: Convert to fraction form
    20,926.08/28,878.16 = 11,494.64/x
  3. Step 3: Cross multiply
    20,926.08x = 28,878.16 × 11,494.64
  4. Step 4: Simplify right side
    20,926.08x = 331,944,053.06
  5. Step 5: Solve for x
    x = 331,944,053.06/20,926.08
  6. Step 6: Final answer
    x = 15,862.70

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.