Home / 21,903.96-32,876.67-13,558.71

Finding the Fourth Proportional to 21,903.96, 32,876.67 and 13,558.71

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Solution

The fourth proportional to 21,903.96, 32,876.67 and 13,558.71 is: 20,350.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,903.96 : 32,876.67 = 13,558.71 : x
  2. Step 2: Convert to fraction form
    21,903.96/32,876.67 = 13,558.71/x
  3. Step 3: Cross multiply
    21,903.96x = 32,876.67 × 13,558.71
  4. Step 4: Simplify right side
    21,903.96x = 445,765,234.30
  5. Step 5: Solve for x
    x = 445,765,234.30/21,903.96
  6. Step 6: Final answer
    x = 20,350.90

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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.