Home / 21,599.25-29,816.96-15,231.03

Finding the Fourth Proportional to 21,599.25, 29,816.96 and 15,231.03

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Solution

The fourth proportional to 21,599.25, 29,816.96 and 15,231.03 is: 21,025.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,599.25 : 29,816.96 = 15,231.03 : x
  2. Step 2: Convert to fraction form
    21,599.25/29,816.96 = 15,231.03/x
  3. Step 3: Cross multiply
    21,599.25x = 29,816.96 × 15,231.03
  4. Step 4: Simplify right side
    21,599.25x = 454,142,936.11
  5. Step 5: Solve for x
    x = 454,142,936.11/21,599.25
  6. Step 6: Final answer
    x = 21,025.87

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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.