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Finding the Fourth Proportional to 34,241.40, 51,329.70 and 20,212.20

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Solution

The fourth proportional to 34,241.40, 51,329.70 and 20,212.20 is: 30,299.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,241.40 : 51,329.70 = 20,212.20 : x
  2. Step 2: Convert to fraction form
    34,241.40/51,329.70 = 20,212.20/x
  3. Step 3: Cross multiply
    34,241.40x = 51,329.70 × 20,212.20
  4. Step 4: Simplify right side
    34,241.40x = 1,037,486,162.34
  5. Step 5: Solve for x
    x = 1,037,486,162.34/34,241.40
  6. Step 6: Final answer
    x = 30,299.17

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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.