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Finding the Fourth Proportional to 20,411.92, 30,583.32 and 16,264.72

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Solution

The fourth proportional to 20,411.92, 30,583.32 and 16,264.72 is: 24,369.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,411.92 : 30,583.32 = 16,264.72 : x
  2. Step 2: Convert to fraction form
    20,411.92/30,583.32 = 16,264.72/x
  3. Step 3: Cross multiply
    20,411.92x = 30,583.32 × 16,264.72
  4. Step 4: Simplify right side
    20,411.92x = 497,429,136.47
  5. Step 5: Solve for x
    x = 497,429,136.47/20,411.92
  6. Step 6: Final answer
    x = 24,369.54

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1.5x scale

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.