Home / 21,399.60-32,099.40-14,401.20

Finding the Fourth Proportional to 21,399.60, 32,099.40 and 14,401.20

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Solution

The fourth proportional to 21,399.60, 32,099.40 and 14,401.20 is: 21,601.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,399.60 : 32,099.40 = 14,401.20 : x
  2. Step 2: Convert to fraction form
    21,399.60/32,099.40 = 14,401.20/x
  3. Step 3: Cross multiply
    21,399.60x = 32,099.40 × 14,401.20
  4. Step 4: Simplify right side
    21,399.60x = 462,269,879.28
  5. Step 5: Solve for x
    x = 462,269,879.28/21,399.60
  6. Step 6: Final answer
    x = 21,601.80

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Similar ratio
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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.