Home / 30,201.36-45,310.14-12,666.48

Finding the Fourth Proportional to 30,201.36, 45,310.14 and 12,666.48

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Solution

The fourth proportional to 30,201.36, 45,310.14 and 12,666.48 is: 19,003.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,201.36 : 45,310.14 = 12,666.48 : x
  2. Step 2: Convert to fraction form
    30,201.36/45,310.14 = 12,666.48/x
  3. Step 3: Cross multiply
    30,201.36x = 45,310.14 × 12,666.48
  4. Step 4: Simplify right side
    30,201.36x = 573,919,982.11
  5. Step 5: Solve for x
    x = 573,919,982.11/30,201.36
  6. Step 6: Final answer
    x = 19,003.12

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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.