Home / 21,318.37-31,963.88-8,847.00

Finding the Fourth Proportional to 21,318.37, 31,963.88 and 8,847.00

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Solution

The fourth proportional to 21,318.37, 31,963.88 and 8,847.00 is: 13,264.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,318.37 : 31,963.88 = 8,847.00 : x
  2. Step 2: Convert to fraction form
    21,318.37/31,963.88 = 8,847.00/x
  3. Step 3: Cross multiply
    21,318.37x = 31,963.88 × 8,847.00
  4. Step 4: Simplify right side
    21,318.37x = 282,784,548.39
  5. Step 5: Solve for x
    x = 282,784,548.39/21,318.37
  6. Step 6: Final answer
    x = 13,264.83

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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.