Home / 21,890.84-32,844.02-10,805.30

Finding the Fourth Proportional to 21,890.84, 32,844.02 and 10,805.30

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Solution

The fourth proportional to 21,890.84, 32,844.02 and 10,805.30 is: 16,211.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,890.84 : 32,844.02 = 10,805.30 : x
  2. Step 2: Convert to fraction form
    21,890.84/32,844.02 = 10,805.30/x
  3. Step 3: Cross multiply
    21,890.84x = 32,844.02 × 10,805.30
  4. Step 4: Simplify right side
    21,890.84x = 354,889,435.28
  5. Step 5: Solve for x
    x = 354,889,435.28/21,890.84
  6. Step 6: Final answer
    x = 16,211.78

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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.