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Finding the Fourth Proportional to 30,620.52, 45,941.01 and 11,901.18

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Solution

The fourth proportional to 30,620.52, 45,941.01 and 11,901.18 is: 17,855.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,620.52 : 45,941.01 = 11,901.18 : x
  2. Step 2: Convert to fraction form
    30,620.52/45,941.01 = 11,901.18/x
  3. Step 3: Cross multiply
    30,620.52x = 45,941.01 × 11,901.18
  4. Step 4: Simplify right side
    30,620.52x = 546,752,229.39
  5. Step 5: Solve for x
    x = 546,752,229.39/30,620.52
  6. Step 6: Final answer
    x = 17,855.75

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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.