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Finding the Fourth Proportional to 30,396.38, 45,594.77 and 9,619.88

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Solution

The fourth proportional to 30,396.38, 45,594.77 and 9,619.88 is: 14,429.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,396.38 : 45,594.77 = 9,619.88 : x
  2. Step 2: Convert to fraction form
    30,396.38/45,594.77 = 9,619.88/x
  3. Step 3: Cross multiply
    30,396.38x = 45,594.77 × 9,619.88
  4. Step 4: Simplify right side
    30,396.38x = 438,615,939.95
  5. Step 5: Solve for x
    x = 438,615,939.95/30,396.38
  6. Step 6: Final answer
    x = 14,429.88

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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.