Home / 21,258.96-31,889.11-6,467.77

Finding the Fourth Proportional to 21,258.96, 31,889.11 and 6,467.77

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Solution

The fourth proportional to 21,258.96, 31,889.11 and 6,467.77 is: 9,701.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,258.96 : 31,889.11 = 6,467.77 : x
  2. Step 2: Convert to fraction form
    21,258.96/31,889.11 = 6,467.77/x
  3. Step 3: Cross multiply
    21,258.96x = 31,889.11 × 6,467.77
  4. Step 4: Simplify right side
    21,258.96x = 206,251,285.43
  5. Step 5: Solve for x
    x = 206,251,285.43/21,258.96
  6. Step 6: Final answer
    x = 9,701.85

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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.