Home / 21,368.84-32,016.48-15,118.58

Finding the Fourth Proportional to 21,368.84, 32,016.48 and 15,118.58

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Solution

The fourth proportional to 21,368.84, 32,016.48 and 15,118.58 is: 22,651.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,368.84 : 32,016.48 = 15,118.58 : x
  2. Step 2: Convert to fraction form
    21,368.84/32,016.48 = 15,118.58/x
  3. Step 3: Cross multiply
    21,368.84x = 32,016.48 × 15,118.58
  4. Step 4: Simplify right side
    21,368.84x = 484,043,714.20
  5. Step 5: Solve for x
    x = 484,043,714.20/21,368.84
  6. Step 6: Final answer
    x = 22,651.85

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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.