Home / 21,848.68-32,817.18-13,100.20

Finding the Fourth Proportional to 21,848.68, 32,817.18 and 13,100.20

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Solution

The fourth proportional to 21,848.68, 32,817.18 and 13,100.20 is: 19,676.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,848.68 : 32,817.18 = 13,100.20 : x
  2. Step 2: Convert to fraction form
    21,848.68/32,817.18 = 13,100.20/x
  3. Step 3: Cross multiply
    21,848.68x = 32,817.18 × 13,100.20
  4. Step 4: Simplify right side
    21,848.68x = 429,911,621.44
  5. Step 5: Solve for x
    x = 429,911,621.44/21,848.68
  6. Step 6: Final answer
    x = 19,676.78

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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.