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Finding the Fourth Proportional to 30,488.62, 45,733.74 and 8,302.18

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Solution

The fourth proportional to 30,488.62, 45,733.74 and 8,302.18 is: 12,453.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,488.62 : 45,733.74 = 8,302.18 : x
  2. Step 2: Convert to fraction form
    30,488.62/45,733.74 = 8,302.18/x
  3. Step 3: Cross multiply
    30,488.62x = 45,733.74 × 8,302.18
  4. Step 4: Simplify right side
    30,488.62x = 379,689,741.55
  5. Step 5: Solve for x
    x = 379,689,741.55/30,488.62
  6. Step 6: Final answer
    x = 12,453.49

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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.