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Finding the Fourth Proportional to 29,136.48, 43,621.20 and 21,775.20

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Solution

The fourth proportional to 29,136.48, 43,621.20 and 21,775.20 is: 32,600.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,136.48 : 43,621.20 = 21,775.20 : x
  2. Step 2: Convert to fraction form
    29,136.48/43,621.20 = 21,775.20/x
  3. Step 3: Cross multiply
    29,136.48x = 43,621.20 × 21,775.20
  4. Step 4: Simplify right side
    29,136.48x = 949,860,354.24
  5. Step 5: Solve for x
    x = 949,860,354.24/29,136.48
  6. Step 6: Final answer
    x = 32,600.38

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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.