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Finding the Fourth Proportional to 30,051, 41,472.30 and 16,803

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Solution

The fourth proportional to 30,051, 41,472.30 and 16,803 is: 23,189.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,051 : 41,472.30 = 16,803 : x
  2. Step 2: Convert to fraction form
    30,051/41,472.30 = 16,803/x
  3. Step 3: Cross multiply
    30,051x = 41,472.30 × 16,803
  4. Step 4: Simplify right side
    30,051x = 696,859,056.90
  5. Step 5: Solve for x
    x = 696,859,056.90/30,051
  6. Step 6: Final answer
    x = 23,189.21

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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.