Home / 21,949.02-32,923.55-7,157.90

Finding the Fourth Proportional to 21,949.02, 32,923.55 and 7,157.90

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Solution

The fourth proportional to 21,949.02, 32,923.55 and 7,157.90 is: 10,736.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,949.02 : 32,923.55 = 7,157.90 : x
  2. Step 2: Convert to fraction form
    21,949.02/32,923.55 = 7,157.90/x
  3. Step 3: Cross multiply
    21,949.02x = 32,923.55 × 7,157.90
  4. Step 4: Simplify right side
    21,949.02x = 235,663,478.55
  5. Step 5: Solve for x
    x = 235,663,478.55/21,949.02
  6. Step 6: Final answer
    x = 10,736.86

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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.