Home / 21,194.49-31,791.87-6,403.35

Finding the Fourth Proportional to 21,194.49, 31,791.87 and 6,403.35

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Solution

The fourth proportional to 21,194.49, 31,791.87 and 6,403.35 is: 9,605.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,194.49 : 31,791.87 = 6,403.35 : x
  2. Step 2: Convert to fraction form
    21,194.49/31,791.87 = 6,403.35/x
  3. Step 3: Cross multiply
    21,194.49x = 31,791.87 × 6,403.35
  4. Step 4: Simplify right side
    21,194.49x = 203,574,470.76
  5. Step 5: Solve for x
    x = 203,574,470.76/21,194.49
  6. Step 6: Final answer
    x = 9,605.07

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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.