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Finding the Fourth Proportional to 30,051.68, 41,468.12 and 16,620.80

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Solution

The fourth proportional to 30,051.68, 41,468.12 and 16,620.80 is: 22,934.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,051.68 : 41,468.12 = 16,620.80 : x
  2. Step 2: Convert to fraction form
    30,051.68/41,468.12 = 16,620.80/x
  3. Step 3: Cross multiply
    30,051.68x = 41,468.12 × 16,620.80
  4. Step 4: Simplify right side
    30,051.68x = 689,233,328.90
  5. Step 5: Solve for x
    x = 689,233,328.90/30,051.68
  6. Step 6: Final answer
    x = 22,934.94

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1.5x scale

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.