Home / 20,746.52-28,629.96-11,314.88

Finding the Fourth Proportional to 20,746.52, 28,629.96 and 11,314.88

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Solution

The fourth proportional to 20,746.52, 28,629.96 and 11,314.88 is: 15,614.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,746.52 : 28,629.96 = 11,314.88 : x
  2. Step 2: Convert to fraction form
    20,746.52/28,629.96 = 11,314.88/x
  3. Step 3: Cross multiply
    20,746.52x = 28,629.96 × 11,314.88
  4. Step 4: Simplify right side
    20,746.52x = 323,944,561.80
  5. Step 5: Solve for x
    x = 323,944,561.80/20,746.52
  6. Step 6: Final answer
    x = 15,614.40

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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.