Home / 21,418.74-32,127.78-5,836.32

Finding the Fourth Proportional to 21,418.74, 32,127.78 and 5,836.32

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Solution

The fourth proportional to 21,418.74, 32,127.78 and 5,836.32 is: 8,754.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,418.74 : 32,127.78 = 5,836.32 : x
  2. Step 2: Convert to fraction form
    21,418.74/32,127.78 = 5,836.32/x
  3. Step 3: Cross multiply
    21,418.74x = 32,127.78 × 5,836.32
  4. Step 4: Simplify right side
    21,418.74x = 187,508,004.97
  5. Step 5: Solve for x
    x = 187,508,004.97/21,418.74
  6. Step 6: Final answer
    x = 8,754.39

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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.