Home / 21,039.60-31,554.54-6,244.95

Finding the Fourth Proportional to 21,039.60, 31,554.54 and 6,244.95

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Solution

The fourth proportional to 21,039.60, 31,554.54 and 6,244.95 is: 9,365.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,039.60 : 31,554.54 = 6,244.95 : x
  2. Step 2: Convert to fraction form
    21,039.60/31,554.54 = 6,244.95/x
  3. Step 3: Cross multiply
    21,039.60x = 31,554.54 × 6,244.95
  4. Step 4: Simplify right side
    21,039.60x = 197,056,524.57
  5. Step 5: Solve for x
    x = 197,056,524.57/21,039.60
  6. Step 6: Final answer
    x = 9,365.98

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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.