Home / 18,968.34-28,489.40-15,460.92

Finding the Fourth Proportional to 18,968.34, 28,489.40 and 15,460.92

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Solution

The fourth proportional to 18,968.34, 28,489.40 and 15,460.92 is: 23,221.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,968.34 : 28,489.40 = 15,460.92 : x
  2. Step 2: Convert to fraction form
    18,968.34/28,489.40 = 15,460.92/x
  3. Step 3: Cross multiply
    18,968.34x = 28,489.40 × 15,460.92
  4. Step 4: Simplify right side
    18,968.34x = 440,472,256.94
  5. Step 5: Solve for x
    x = 440,472,256.94/18,968.34
  6. Step 6: Final answer
    x = 23,221.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.