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Finding the Fourth Proportional to 21,760.28, 32,656.44 and 9,927.44

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Solution

The fourth proportional to 21,760.28, 32,656.44 and 9,927.44 is: 14,898.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,760.28 : 32,656.44 = 9,927.44 : x
  2. Step 2: Convert to fraction form
    21,760.28/32,656.44 = 9,927.44/x
  3. Step 3: Cross multiply
    21,760.28x = 32,656.44 × 9,927.44
  4. Step 4: Simplify right side
    21,760.28x = 324,194,848.71
  5. Step 5: Solve for x
    x = 324,194,848.71/21,760.28
  6. Step 6: Final answer
    x = 14,898.47

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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.