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Finding the Fourth Proportional to 30,422.70, 45,636.72 and 10,701.42

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Solution

The fourth proportional to 30,422.70, 45,636.72 and 10,701.42 is: 16,053.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,422.70 : 45,636.72 = 10,701.42 : x
  2. Step 2: Convert to fraction form
    30,422.70/45,636.72 = 10,701.42/x
  3. Step 3: Cross multiply
    30,422.70x = 45,636.72 × 10,701.42
  4. Step 4: Simplify right side
    30,422.70x = 488,377,708.14
  5. Step 5: Solve for x
    x = 488,377,708.14/30,422.70
  6. Step 6: Final answer
    x = 16,053.07

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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.