Home / 20,606.10-30,896.40-14,012.30

Finding the Fourth Proportional to 20,606.10, 30,896.40 and 14,012.30

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Solution

The fourth proportional to 20,606.10, 30,896.40 and 14,012.30 is: 21,009.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,606.10 : 30,896.40 = 14,012.30 : x
  2. Step 2: Convert to fraction form
    20,606.10/30,896.40 = 14,012.30/x
  3. Step 3: Cross multiply
    20,606.10x = 30,896.40 × 14,012.30
  4. Step 4: Simplify right side
    20,606.10x = 432,929,625.72
  5. Step 5: Solve for x
    x = 432,929,625.72/20,606.10
  6. Step 6: Final answer
    x = 21,009.78

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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.