Home / 30,111.15-45,208.10-15,330

Finding the Fourth Proportional to 30,111.15, 45,208.10 and 15,330

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Solution

The fourth proportional to 30,111.15, 45,208.10 and 15,330 is: 23,016.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,111.15 : 45,208.10 = 15,330 : x
  2. Step 2: Convert to fraction form
    30,111.15/45,208.10 = 15,330/x
  3. Step 3: Cross multiply
    30,111.15x = 45,208.10 × 15,330
  4. Step 4: Simplify right side
    30,111.15x = 693,040,173
  5. Step 5: Solve for x
    x = 693,040,173/30,111.15
  6. Step 6: Final answer
    x = 23,016.06

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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.