Home / 20,295.42-28,007.14-11,343

Finding the Fourth Proportional to 20,295.42, 28,007.14 and 11,343

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Solution

The fourth proportional to 20,295.42, 28,007.14 and 11,343 is: 15,653.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,295.42 : 28,007.14 = 11,343 : x
  2. Step 2: Convert to fraction form
    20,295.42/28,007.14 = 11,343/x
  3. Step 3: Cross multiply
    20,295.42x = 28,007.14 × 11,343
  4. Step 4: Simplify right side
    20,295.42x = 317,684,989.02
  5. Step 5: Solve for x
    x = 317,684,989.02/20,295.42
  6. Step 6: Final answer
    x = 15,653.04

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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.