Home / 15,840.72-23,731.74-11,447.28

Finding the Fourth Proportional to 15,840.72, 23,731.74 and 11,447.28

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Solution

The fourth proportional to 15,840.72, 23,731.74 and 11,447.28 is: 17,149.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,840.72 : 23,731.74 = 11,447.28 : x
  2. Step 2: Convert to fraction form
    15,840.72/23,731.74 = 11,447.28/x
  3. Step 3: Cross multiply
    15,840.72x = 23,731.74 × 11,447.28
  4. Step 4: Simplify right side
    15,840.72x = 271,663,872.67
  5. Step 5: Solve for x
    x = 271,663,872.67/15,840.72
  6. Step 6: Final answer
    x = 17,149.72

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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.