Home / 30,003.82-45,013.91-13,133.76

Finding the Fourth Proportional to 30,003.82, 45,013.91 and 13,133.76

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Solution

The fourth proportional to 30,003.82, 45,013.91 and 13,133.76 is: 19,704.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,003.82 : 45,013.91 = 13,133.76 : x
  2. Step 2: Convert to fraction form
    30,003.82/45,013.91 = 13,133.76/x
  3. Step 3: Cross multiply
    30,003.82x = 45,013.91 × 13,133.76
  4. Step 4: Simplify right side
    30,003.82x = 591,201,890.60
  5. Step 5: Solve for x
    x = 591,201,890.60/30,003.82
  6. Step 6: Final answer
    x = 19,704.22

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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.