Home / 31,918.52-47,877.10-8,544.96

Finding the Fourth Proportional to 31,918.52, 47,877.10 and 8,544.96

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Solution

The fourth proportional to 31,918.52, 47,877.10 and 8,544.96 is: 12,817.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,918.52 : 47,877.10 = 8,544.96 : x
  2. Step 2: Convert to fraction form
    31,918.52/47,877.10 = 8,544.96/x
  3. Step 3: Cross multiply
    31,918.52x = 47,877.10 × 8,544.96
  4. Step 4: Simplify right side
    31,918.52x = 409,107,904.42
  5. Step 5: Solve for x
    x = 409,107,904.42/31,918.52
  6. Step 6: Final answer
    x = 12,817.26

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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.