Home / 20,576.41-28,395.10-11,502

Finding the Fourth Proportional to 20,576.41, 28,395.10 and 11,502

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Solution

The fourth proportional to 20,576.41, 28,395.10 and 11,502 is: 15,872.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,576.41 : 28,395.10 = 11,502 : x
  2. Step 2: Convert to fraction form
    20,576.41/28,395.10 = 11,502/x
  3. Step 3: Cross multiply
    20,576.41x = 28,395.10 × 11,502
  4. Step 4: Simplify right side
    20,576.41x = 326,600,440.20
  5. Step 5: Solve for x
    x = 326,600,440.20/20,576.41
  6. Step 6: Final answer
    x = 15,872.57

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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.