Home / 21,776.28-32,623.30-12,865.02

Finding the Fourth Proportional to 21,776.28, 32,623.30 and 12,865.02

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Solution

The fourth proportional to 21,776.28, 32,623.30 and 12,865.02 is: 19,273.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,776.28 : 32,623.30 = 12,865.02 : x
  2. Step 2: Convert to fraction form
    21,776.28/32,623.30 = 12,865.02/x
  3. Step 3: Cross multiply
    21,776.28x = 32,623.30 × 12,865.02
  4. Step 4: Simplify right side
    21,776.28x = 419,699,406.97
  5. Step 5: Solve for x
    x = 419,699,406.97/21,776.28
  6. Step 6: Final answer
    x = 19,273.24

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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.