Home / 20,725.45-28,601.10-11,294.02

Finding the Fourth Proportional to 20,725.45, 28,601.10 and 11,294.02

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Solution

The fourth proportional to 20,725.45, 28,601.10 and 11,294.02 is: 15,585.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,725.45 : 28,601.10 = 11,294.02 : x
  2. Step 2: Convert to fraction form
    20,725.45/28,601.10 = 11,294.02/x
  3. Step 3: Cross multiply
    20,725.45x = 28,601.10 × 11,294.02
  4. Step 4: Simplify right side
    20,725.45x = 323,021,395.42
  5. Step 5: Solve for x
    x = 323,021,395.42/20,725.45
  6. Step 6: Final answer
    x = 15,585.74

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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.