Home / 30,503.18-45,756.60-11,786.11

Finding the Fourth Proportional to 30,503.18, 45,756.60 and 11,786.11

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Solution

The fourth proportional to 30,503.18, 45,756.60 and 11,786.11 is: 17,679.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,503.18 : 45,756.60 = 11,786.11 : x
  2. Step 2: Convert to fraction form
    30,503.18/45,756.60 = 11,786.11/x
  3. Step 3: Cross multiply
    30,503.18x = 45,756.60 × 11,786.11
  4. Step 4: Simplify right side
    30,503.18x = 539,292,162.24
  5. Step 5: Solve for x
    x = 539,292,162.24/30,503.18
  6. Step 6: Final answer
    x = 17,679.87

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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.