Home / 21,632.10-29,847.09-14,915.58

Finding the Fourth Proportional to 21,632.10, 29,847.09 and 14,915.58

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Solution

The fourth proportional to 21,632.10, 29,847.09 and 14,915.58 is: 20,579.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,632.10 : 29,847.09 = 14,915.58 : x
  2. Step 2: Convert to fraction form
    21,632.10/29,847.09 = 14,915.58/x
  3. Step 3: Cross multiply
    21,632.10x = 29,847.09 × 14,915.58
  4. Step 4: Simplify right side
    21,632.10x = 445,186,658.66
  5. Step 5: Solve for x
    x = 445,186,658.66/21,632.10
  6. Step 6: Final answer
    x = 20,579.91

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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.