Home / 20,835.68-28,748.66-12,333.56

Finding the Fourth Proportional to 20,835.68, 28,748.66 and 12,333.56

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Solution

The fourth proportional to 20,835.68, 28,748.66 and 12,333.56 is: 17,017.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,835.68 : 28,748.66 = 12,333.56 : x
  2. Step 2: Convert to fraction form
    20,835.68/28,748.66 = 12,333.56/x
  3. Step 3: Cross multiply
    20,835.68x = 28,748.66 × 12,333.56
  4. Step 4: Simplify right side
    20,835.68x = 354,573,117.62
  5. Step 5: Solve for x
    x = 354,573,117.62/20,835.68
  6. Step 6: Final answer
    x = 17,017.60

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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.