Home / 20,835.14-28,748.03-12,339.92

Finding the Fourth Proportional to 20,835.14, 28,748.03 and 12,339.92

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Solution

The fourth proportional to 20,835.14, 28,748.03 and 12,339.92 is: 17,026.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,835.14 : 28,748.03 = 12,339.92 : x
  2. Step 2: Convert to fraction form
    20,835.14/28,748.03 = 12,339.92/x
  3. Step 3: Cross multiply
    20,835.14x = 28,748.03 × 12,339.92
  4. Step 4: Simplify right side
    20,835.14x = 354,748,184.92
  5. Step 5: Solve for x
    x = 354,748,184.92/20,835.14
  6. Step 6: Final answer
    x = 17,026.44

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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.