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Finding the Fourth Proportional to 38,008.80, 52,450.20 and 21,241.80

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Solution

The fourth proportional to 38,008.80, 52,450.20 and 21,241.80 is: 29,312.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,008.80 : 52,450.20 = 21,241.80 : x
  2. Step 2: Convert to fraction form
    38,008.80/52,450.20 = 21,241.80/x
  3. Step 3: Cross multiply
    38,008.80x = 52,450.20 × 21,241.80
  4. Step 4: Simplify right side
    38,008.80x = 1,114,136,658.36
  5. Step 5: Solve for x
    x = 1,114,136,658.36/38,008.80
  6. Step 6: Final answer
    x = 29,312.60

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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.