Home / 21,830.18-32,714.26-16,813.58

Finding the Fourth Proportional to 21,830.18, 32,714.26 and 16,813.58

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Solution

The fourth proportional to 21,830.18, 32,714.26 and 16,813.58 is: 25,196.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,830.18 : 32,714.26 = 16,813.58 : x
  2. Step 2: Convert to fraction form
    21,830.18/32,714.26 = 16,813.58/x
  3. Step 3: Cross multiply
    21,830.18x = 32,714.26 × 16,813.58
  4. Step 4: Simplify right side
    21,830.18x = 550,043,819.17
  5. Step 5: Solve for x
    x = 550,043,819.17/21,830.18
  6. Step 6: Final answer
    x = 25,196.48

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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.