Home / 20,874.24-31,312-6,084.80

Finding the Fourth Proportional to 20,874.24, 31,312 and 6,084.80

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Solution

The fourth proportional to 20,874.24, 31,312 and 6,084.80 is: 9,127.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,874.24 : 31,312 = 6,084.80 : x
  2. Step 2: Convert to fraction form
    20,874.24/31,312 = 6,084.80/x
  3. Step 3: Cross multiply
    20,874.24x = 31,312 × 6,084.80
  4. Step 4: Simplify right side
    20,874.24x = 190,527,257.60
  5. Step 5: Solve for x
    x = 190,527,257.60/20,874.24
  6. Step 6: Final answer
    x = 9,127.39

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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.