Home / 21,034.86-31,549.56-6,243.48

Finding the Fourth Proportional to 21,034.86, 31,549.56 and 6,243.48

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Solution

The fourth proportional to 21,034.86, 31,549.56 and 6,243.48 is: 9,364.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,034.86 : 31,549.56 = 6,243.48 : x
  2. Step 2: Convert to fraction form
    21,034.86/31,549.56 = 6,243.48/x
  3. Step 3: Cross multiply
    21,034.86x = 31,549.56 × 6,243.48
  4. Step 4: Simplify right side
    21,034.86x = 196,979,046.87
  5. Step 5: Solve for x
    x = 196,979,046.87/21,034.86
  6. Step 6: Final answer
    x = 9,364.41

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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.