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Finding the Fourth Proportional to 43,609.79, 65,414.95 and 15,530.94

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Solution

The fourth proportional to 43,609.79, 65,414.95 and 15,530.94 is: 23,296.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,609.79 : 65,414.95 = 15,530.94 : x
  2. Step 2: Convert to fraction form
    43,609.79/65,414.95 = 15,530.94/x
  3. Step 3: Cross multiply
    43,609.79x = 65,414.95 × 15,530.94
  4. Step 4: Simplify right side
    43,609.79x = 1,015,955,624.73
  5. Step 5: Solve for x
    x = 1,015,955,624.73/43,609.79
  6. Step 6: Final answer
    x = 23,296.50

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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.