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Finding the Fourth Proportional to 30,672.77, 45,989.34 and 14,655.73

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Solution

The fourth proportional to 30,672.77, 45,989.34 and 14,655.73 is: 21,974.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,672.77 : 45,989.34 = 14,655.73 : x
  2. Step 2: Convert to fraction form
    30,672.77/45,989.34 = 14,655.73/x
  3. Step 3: Cross multiply
    30,672.77x = 45,989.34 × 14,655.73
  4. Step 4: Simplify right side
    30,672.77x = 674,007,342.02
  5. Step 5: Solve for x
    x = 674,007,342.02/30,672.77
  6. Step 6: Final answer
    x = 21,974.13

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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.