Home / 17,884.20-26,826.30-15,421.80

Finding the Fourth Proportional to 17,884.20, 26,826.30 and 15,421.80

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Solution

The fourth proportional to 17,884.20, 26,826.30 and 15,421.80 is: 23,132.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,884.20 : 26,826.30 = 15,421.80 : x
  2. Step 2: Convert to fraction form
    17,884.20/26,826.30 = 15,421.80/x
  3. Step 3: Cross multiply
    17,884.20x = 26,826.30 × 15,421.80
  4. Step 4: Simplify right side
    17,884.20x = 413,709,833.34
  5. Step 5: Solve for x
    x = 413,709,833.34/17,884.20
  6. Step 6: Final answer
    x = 23,132.70

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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.