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Finding the Fourth Proportional to 30,383.69, 45,595.52 and 10,661.73

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Solution

The fourth proportional to 30,383.69, 45,595.52 and 10,661.73 is: 15,999.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,383.69 : 45,595.52 = 10,661.73 : x
  2. Step 2: Convert to fraction form
    30,383.69/45,595.52 = 10,661.73/x
  3. Step 3: Cross multiply
    30,383.69x = 45,595.52 × 10,661.73
  4. Step 4: Simplify right side
    30,383.69x = 486,126,999.11
  5. Step 5: Solve for x
    x = 486,126,999.11/30,383.69
  6. Step 6: Final answer
    x = 15,999.60

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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.