Home / 21,180.14-31,769.64-5,597.90

Finding the Fourth Proportional to 21,180.14, 31,769.64 and 5,597.90

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Solution

The fourth proportional to 21,180.14, 31,769.64 and 5,597.90 is: 8,396.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,180.14 : 31,769.64 = 5,597.90 : x
  2. Step 2: Convert to fraction form
    21,180.14/31,769.64 = 5,597.90/x
  3. Step 3: Cross multiply
    21,180.14x = 31,769.64 × 5,597.90
  4. Step 4: Simplify right side
    21,180.14x = 177,843,267.76
  5. Step 5: Solve for x
    x = 177,843,267.76/21,180.14
  6. Step 6: Final answer
    x = 8,396.70

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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.