Home / 21,002.27-31,497.93-9,906.03

Finding the Fourth Proportional to 21,002.27, 31,497.93 and 9,906.03

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Solution

The fourth proportional to 21,002.27, 31,497.93 and 9,906.03 is: 14,856.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,002.27 : 31,497.93 = 9,906.03 : x
  2. Step 2: Convert to fraction form
    21,002.27/31,497.93 = 9,906.03/x
  3. Step 3: Cross multiply
    21,002.27x = 31,497.93 × 9,906.03
  4. Step 4: Simplify right side
    21,002.27x = 312,019,439.52
  5. Step 5: Solve for x
    x = 312,019,439.52/21,002.27
  6. Step 6: Final answer
    x = 14,856.47

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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.