Home / 21,241.80-31,864.86-6,454.44

Finding the Fourth Proportional to 21,241.80, 31,864.86 and 6,454.44

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Solution

The fourth proportional to 21,241.80, 31,864.86 and 6,454.44 is: 9,682.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,241.80 : 31,864.86 = 6,454.44 : x
  2. Step 2: Convert to fraction form
    21,241.80/31,864.86 = 6,454.44/x
  3. Step 3: Cross multiply
    21,241.80x = 31,864.86 × 6,454.44
  4. Step 4: Simplify right side
    21,241.80x = 205,669,826.98
  5. Step 5: Solve for x
    x = 205,669,826.98/21,241.80
  6. Step 6: Final answer
    x = 9,682.32

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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.