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Finding the Fourth Proportional to 21,807.88, 32,713.02 and 7,015.72

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Solution

The fourth proportional to 21,807.88, 32,713.02 and 7,015.72 is: 10,523.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,807.88 : 32,713.02 = 7,015.72 : x
  2. Step 2: Convert to fraction form
    21,807.88/32,713.02 = 7,015.72/x
  3. Step 3: Cross multiply
    21,807.88x = 32,713.02 × 7,015.72
  4. Step 4: Simplify right side
    21,807.88x = 229,505,388.67
  5. Step 5: Solve for x
    x = 229,505,388.67/21,807.88
  6. Step 6: Final answer
    x = 10,523.97

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1.5x scale

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.