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Finding the Fourth Proportional to 30,022.40, 41,425.02 and 18,086.39

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Solution

The fourth proportional to 30,022.40, 41,425.02 and 18,086.39 is: 24,955.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,022.40 : 41,425.02 = 18,086.39 : x
  2. Step 2: Convert to fraction form
    30,022.40/41,425.02 = 18,086.39/x
  3. Step 3: Cross multiply
    30,022.40x = 41,425.02 × 18,086.39
  4. Step 4: Simplify right side
    30,022.40x = 749,229,171.04
  5. Step 5: Solve for x
    x = 749,229,171.04/30,022.40
  6. Step 6: Final answer
    x = 24,955.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.