Home / 21,349.80-32,012.70-8,202.60

Finding the Fourth Proportional to 21,349.80, 32,012.70 and 8,202.60

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Solution

The fourth proportional to 21,349.80, 32,012.70 and 8,202.60 is: 12,299.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,349.80 : 32,012.70 = 8,202.60 : x
  2. Step 2: Convert to fraction form
    21,349.80/32,012.70 = 8,202.60/x
  3. Step 3: Cross multiply
    21,349.80x = 32,012.70 × 8,202.60
  4. Step 4: Simplify right side
    21,349.80x = 262,587,373.02
  5. Step 5: Solve for x
    x = 262,587,373.02/21,349.80
  6. Step 6: Final answer
    x = 12,299.29

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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.