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Finding the Fourth Proportional to 30,043.74, 45,068.67 and 10,319.74

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Solution

The fourth proportional to 30,043.74, 45,068.67 and 10,319.74 is: 15,480.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,043.74 : 45,068.67 = 10,319.74 : x
  2. Step 2: Convert to fraction form
    30,043.74/45,068.67 = 10,319.74/x
  3. Step 3: Cross multiply
    30,043.74x = 45,068.67 × 10,319.74
  4. Step 4: Simplify right side
    30,043.74x = 465,096,843.87
  5. Step 5: Solve for x
    x = 465,096,843.87/30,043.74
  6. Step 6: Final answer
    x = 15,480.66

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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.