Home / 21,520.98-32,245.02-13,183.56

Finding the Fourth Proportional to 21,520.98, 32,245.02 and 13,183.56

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Solution

The fourth proportional to 21,520.98, 32,245.02 and 13,183.56 is: 19,753.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,520.98 : 32,245.02 = 13,183.56 : x
  2. Step 2: Convert to fraction form
    21,520.98/32,245.02 = 13,183.56/x
  3. Step 3: Cross multiply
    21,520.98x = 32,245.02 × 13,183.56
  4. Step 4: Simplify right side
    21,520.98x = 425,104,155.87
  5. Step 5: Solve for x
    x = 425,104,155.87/21,520.98
  6. Step 6: Final answer
    x = 19,753.01

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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.