Home / 20,586.30-28,408.23-11,633.10

Finding the Fourth Proportional to 20,586.30, 28,408.23 and 11,633.10

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Solution

The fourth proportional to 20,586.30, 28,408.23 and 11,633.10 is: 16,053.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,586.30 : 28,408.23 = 11,633.10 : x
  2. Step 2: Convert to fraction form
    20,586.30/28,408.23 = 11,633.10/x
  3. Step 3: Cross multiply
    20,586.30x = 28,408.23 × 11,633.10
  4. Step 4: Simplify right side
    20,586.30x = 330,475,780.41
  5. Step 5: Solve for x
    x = 330,475,780.41/20,586.30
  6. Step 6: Final answer
    x = 16,053.19

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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.