Home / 20,637.24-28,478.61-11,682.96

Finding the Fourth Proportional to 20,637.24, 28,478.61 and 11,682.96

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Solution

The fourth proportional to 20,637.24, 28,478.61 and 11,682.96 is: 16,122.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,637.24 : 28,478.61 = 11,682.96 : x
  2. Step 2: Convert to fraction form
    20,637.24/28,478.61 = 11,682.96/x
  3. Step 3: Cross multiply
    20,637.24x = 28,478.61 × 11,682.96
  4. Step 4: Simplify right side
    20,637.24x = 332,714,461.49
  5. Step 5: Solve for x
    x = 332,714,461.49/20,637.24
  6. Step 6: Final answer
    x = 16,122.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.