Home / 16,621.18-24,936-13,664.47

Finding the Fourth Proportional to 16,621.18, 24,936 and 13,664.47

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Solution

The fourth proportional to 16,621.18, 24,936 and 13,664.47 is: 20,500.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,621.18 : 24,936 = 13,664.47 : x
  2. Step 2: Convert to fraction form
    16,621.18/24,936 = 13,664.47/x
  3. Step 3: Cross multiply
    16,621.18x = 24,936 × 13,664.47
  4. Step 4: Simplify right side
    16,621.18x = 340,737,223.92
  5. Step 5: Solve for x
    x = 340,737,223.92/16,621.18
  6. Step 6: Final answer
    x = 20,500.18

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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.