Home / 31,135.12-46,699.23-11,143.81

Finding the Fourth Proportional to 31,135.12, 46,699.23 and 11,143.81

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Solution

The fourth proportional to 31,135.12, 46,699.23 and 11,143.81 is: 16,714.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,135.12 : 46,699.23 = 11,143.81 : x
  2. Step 2: Convert to fraction form
    31,135.12/46,699.23 = 11,143.81/x
  3. Step 3: Cross multiply
    31,135.12x = 46,699.23 × 11,143.81
  4. Step 4: Simplify right side
    31,135.12x = 520,407,346.27
  5. Step 5: Solve for x
    x = 520,407,346.27/31,135.12
  6. Step 6: Final answer
    x = 16,714.48

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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.