Home / 30,162.66-45,247.48-11,456.72

Finding the Fourth Proportional to 30,162.66, 45,247.48 and 11,456.72

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Solution

The fourth proportional to 30,162.66, 45,247.48 and 11,456.72 is: 17,186.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,162.66 : 45,247.48 = 11,456.72 : x
  2. Step 2: Convert to fraction form
    30,162.66/45,247.48 = 11,456.72/x
  3. Step 3: Cross multiply
    30,162.66x = 45,247.48 × 11,456.72
  4. Step 4: Simplify right side
    30,162.66x = 518,387,709.07
  5. Step 5: Solve for x
    x = 518,387,709.07/30,162.66
  6. Step 6: Final answer
    x = 17,186.41

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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.