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Finding the Fourth Proportional to 30,246.75, 45,370.14 and 8,358.75

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Solution

The fourth proportional to 30,246.75, 45,370.14 and 8,358.75 is: 12,538.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,246.75 : 45,370.14 = 8,358.75 : x
  2. Step 2: Convert to fraction form
    30,246.75/45,370.14 = 8,358.75/x
  3. Step 3: Cross multiply
    30,246.75x = 45,370.14 × 8,358.75
  4. Step 4: Simplify right side
    30,246.75x = 379,237,657.73
  5. Step 5: Solve for x
    x = 379,237,657.73/30,246.75
  6. Step 6: Final answer
    x = 12,538.13

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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.