Home / 21,254.42-31,885.27-6,464.83

Finding the Fourth Proportional to 21,254.42, 31,885.27 and 6,464.83

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Solution

The fourth proportional to 21,254.42, 31,885.27 and 6,464.83 is: 9,698.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,254.42 : 31,885.27 = 6,464.83 : x
  2. Step 2: Convert to fraction form
    21,254.42/31,885.27 = 6,464.83/x
  3. Step 3: Cross multiply
    21,254.42x = 31,885.27 × 6,464.83
  4. Step 4: Simplify right side
    21,254.42x = 206,132,850.05
  5. Step 5: Solve for x
    x = 206,132,850.05/21,254.42
  6. Step 6: Final answer
    x = 9,698.35

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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.