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Finding the Fourth Proportional to 30,153.59, 45,224.02 and 19,447.88

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Solution

The fourth proportional to 30,153.59, 45,224.02 and 19,447.88 is: 29,167.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,153.59 : 45,224.02 = 19,447.88 : x
  2. Step 2: Convert to fraction form
    30,153.59/45,224.02 = 19,447.88/x
  3. Step 3: Cross multiply
    30,153.59x = 45,224.02 × 19,447.88
  4. Step 4: Simplify right side
    30,153.59x = 879,511,314.08
  5. Step 5: Solve for x
    x = 879,511,314.08/30,153.59
  6. Step 6: Final answer
    x = 29,167.71

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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.