Home / 20,982.32-31,492.92-10,601.36

Finding the Fourth Proportional to 20,982.32, 31,492.92 and 10,601.36

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Solution

The fourth proportional to 20,982.32, 31,492.92 and 10,601.36 is: 15,911.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,982.32 : 31,492.92 = 10,601.36 : x
  2. Step 2: Convert to fraction form
    20,982.32/31,492.92 = 10,601.36/x
  3. Step 3: Cross multiply
    20,982.32x = 31,492.92 × 10,601.36
  4. Step 4: Simplify right side
    20,982.32x = 333,867,782.37
  5. Step 5: Solve for x
    x = 333,867,782.37/20,982.32
  6. Step 6: Final answer
    x = 15,911.86

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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.