Home / 21,029.82-31,544.84-6,238.86

Finding the Fourth Proportional to 21,029.82, 31,544.84 and 6,238.86

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Solution

The fourth proportional to 21,029.82, 31,544.84 and 6,238.86 is: 9,358.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,029.82 : 31,544.84 = 6,238.86 : x
  2. Step 2: Convert to fraction form
    21,029.82/31,544.84 = 6,238.86/x
  3. Step 3: Cross multiply
    21,029.82x = 31,544.84 × 6,238.86
  4. Step 4: Simplify right side
    21,029.82x = 196,803,840.48
  5. Step 5: Solve for x
    x = 196,803,840.48/21,029.82
  6. Step 6: Final answer
    x = 9,358.32

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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.