Home / 21,622.08-32,453.33-13,318.29

Finding the Fourth Proportional to 21,622.08, 32,453.33 and 13,318.29

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Solution

The fourth proportional to 21,622.08, 32,453.33 and 13,318.29 is: 19,989.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,622.08 : 32,453.33 = 13,318.29 : x
  2. Step 2: Convert to fraction form
    21,622.08/32,453.33 = 13,318.29/x
  3. Step 3: Cross multiply
    21,622.08x = 32,453.33 × 13,318.29
  4. Step 4: Simplify right side
    21,622.08x = 432,222,860.41
  5. Step 5: Solve for x
    x = 432,222,860.41/21,622.08
  6. Step 6: Final answer
    x = 19,989.88

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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.