Home / 21,134.47-31,704.80-6,344.55

Finding the Fourth Proportional to 21,134.47, 31,704.80 and 6,344.55

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Solution

The fourth proportional to 21,134.47, 31,704.80 and 6,344.55 is: 9,517.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,134.47 : 31,704.80 = 6,344.55 : x
  2. Step 2: Convert to fraction form
    21,134.47/31,704.80 = 6,344.55/x
  3. Step 3: Cross multiply
    21,134.47x = 31,704.80 × 6,344.55
  4. Step 4: Simplify right side
    21,134.47x = 201,152,688.84
  5. Step 5: Solve for x
    x = 201,152,688.84/21,134.47
  6. Step 6: Final answer
    x = 9,517.75

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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.