Home / 21,126.56-31,689.87-6,335.48

Finding the Fourth Proportional to 21,126.56, 31,689.87 and 6,335.48

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Solution

The fourth proportional to 21,126.56, 31,689.87 and 6,335.48 is: 9,503.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,126.56 : 31,689.87 = 6,335.48 : x
  2. Step 2: Convert to fraction form
    21,126.56/31,689.87 = 6,335.48/x
  3. Step 3: Cross multiply
    21,126.56x = 31,689.87 × 6,335.48
  4. Step 4: Simplify right side
    21,126.56x = 200,770,593.05
  5. Step 5: Solve for x
    x = 200,770,593.05/21,126.56
  6. Step 6: Final answer
    x = 9,503.23

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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.