Home / 30,971.86-46,463.39-11,278.06

Finding the Fourth Proportional to 30,971.86, 46,463.39 and 11,278.06

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Solution

The fourth proportional to 30,971.86, 46,463.39 and 11,278.06 is: 16,919.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,971.86 : 46,463.39 = 11,278.06 : x
  2. Step 2: Convert to fraction form
    30,971.86/46,463.39 = 11,278.06/x
  3. Step 3: Cross multiply
    30,971.86x = 46,463.39 × 11,278.06
  4. Step 4: Simplify right side
    30,971.86x = 524,016,900.22
  5. Step 5: Solve for x
    x = 524,016,900.22/30,971.86
  6. Step 6: Final answer
    x = 16,919.13

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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.