Home / 21,196.49-31,794.87-6,405.35

Finding the Fourth Proportional to 21,196.49, 31,794.87 and 6,405.35

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Solution

The fourth proportional to 21,196.49, 31,794.87 and 6,405.35 is: 9,608.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,196.49 : 31,794.87 = 6,405.35 : x
  2. Step 2: Convert to fraction form
    21,196.49/31,794.87 = 6,405.35/x
  3. Step 3: Cross multiply
    21,196.49x = 31,794.87 × 6,405.35
  4. Step 4: Simplify right side
    21,196.49x = 203,657,270.55
  5. Step 5: Solve for x
    x = 203,657,270.55/21,196.49
  6. Step 6: Final answer
    x = 9,608.07

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1.5x scale

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.