Home / 30,429.88-45,644.81-11,458.08

Finding the Fourth Proportional to 30,429.88, 45,644.81 and 11,458.08

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Solution

The fourth proportional to 30,429.88, 45,644.81 and 11,458.08 is: 17,187.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,429.88 : 45,644.81 = 11,458.08 : x
  2. Step 2: Convert to fraction form
    30,429.88/45,644.81 = 11,458.08/x
  3. Step 3: Cross multiply
    30,429.88x = 45,644.81 × 11,458.08
  4. Step 4: Simplify right side
    30,429.88x = 523,001,884.56
  5. Step 5: Solve for x
    x = 523,001,884.56/30,429.88
  6. Step 6: Final answer
    x = 17,187.12

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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.