Home / 21,256.32-29,361.24-16,189.68

Finding the Fourth Proportional to 21,256.32, 29,361.24 and 16,189.68

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Solution

The fourth proportional to 21,256.32, 29,361.24 and 16,189.68 is: 22,362.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,256.32 : 29,361.24 = 16,189.68 : x
  2. Step 2: Convert to fraction form
    21,256.32/29,361.24 = 16,189.68/x
  3. Step 3: Cross multiply
    21,256.32x = 29,361.24 × 16,189.68
  4. Step 4: Simplify right side
    21,256.32x = 475,349,080.00
  5. Step 5: Solve for x
    x = 475,349,080.00/21,256.32
  6. Step 6: Final answer
    x = 22,362.72

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.