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Finding the Fourth Proportional to 30,447.52, 45,674.96 and 11,723.20

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Solution

The fourth proportional to 30,447.52, 45,674.96 and 11,723.20 is: 17,586.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,447.52 : 45,674.96 = 11,723.20 : x
  2. Step 2: Convert to fraction form
    30,447.52/45,674.96 = 11,723.20/x
  3. Step 3: Cross multiply
    30,447.52x = 45,674.96 × 11,723.20
  4. Step 4: Simplify right side
    30,447.52x = 535,456,691.07
  5. Step 5: Solve for x
    x = 535,456,691.07/30,447.52
  6. Step 6: Final answer
    x = 17,586.22

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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.