Home / 21,269.24-31,908.45-6,479.32

Finding the Fourth Proportional to 21,269.24, 31,908.45 and 6,479.32

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Solution

The fourth proportional to 21,269.24, 31,908.45 and 6,479.32 is: 9,720.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,269.24 : 31,908.45 = 6,479.32 : x
  2. Step 2: Convert to fraction form
    21,269.24/31,908.45 = 6,479.32/x
  3. Step 3: Cross multiply
    21,269.24x = 31,908.45 × 6,479.32
  4. Step 4: Simplify right side
    21,269.24x = 206,745,058.25
  5. Step 5: Solve for x
    x = 206,745,058.25/21,269.24
  6. Step 6: Final answer
    x = 9,720.38

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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.