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Finding the Fourth Proportional to 30,277.21, 45,423.11 and 9,500.71

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Solution

The fourth proportional to 30,277.21, 45,423.11 and 9,500.71 is: 14,253.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,277.21 : 45,423.11 = 9,500.71 : x
  2. Step 2: Convert to fraction form
    30,277.21/45,423.11 = 9,500.71/x
  3. Step 3: Cross multiply
    30,277.21x = 45,423.11 × 9,500.71
  4. Step 4: Simplify right side
    30,277.21x = 431,551,520.79
  5. Step 5: Solve for x
    x = 431,551,520.79/30,277.21
  6. Step 6: Final answer
    x = 14,253.35

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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.