Home / 21,865.12-32,807.28-11,474.44

Finding the Fourth Proportional to 21,865.12, 32,807.28 and 11,474.44

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Solution

The fourth proportional to 21,865.12, 32,807.28 and 11,474.44 is: 17,216.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,865.12 : 32,807.28 = 11,474.44 : x
  2. Step 2: Convert to fraction form
    21,865.12/32,807.28 = 11,474.44/x
  3. Step 3: Cross multiply
    21,865.12x = 32,807.28 × 11,474.44
  4. Step 4: Simplify right side
    21,865.12x = 376,445,165.92
  5. Step 5: Solve for x
    x = 376,445,165.92/21,865.12
  6. Step 6: Final answer
    x = 17,216.70

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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.