Home / 21,288.08-31,932.12-8,794.37

Finding the Fourth Proportional to 21,288.08, 31,932.12 and 8,794.37

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Solution

The fourth proportional to 21,288.08, 31,932.12 and 8,794.37 is: 13,191.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,288.08 : 31,932.12 = 8,794.37 : x
  2. Step 2: Convert to fraction form
    21,288.08/31,932.12 = 8,794.37/x
  3. Step 3: Cross multiply
    21,288.08x = 31,932.12 × 8,794.37
  4. Step 4: Simplify right side
    21,288.08x = 280,822,718.50
  5. Step 5: Solve for x
    x = 280,822,718.50/21,288.08
  6. Step 6: Final answer
    x = 13,191.55

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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.