Home / 31,071.13-46,580.91-12,339.61

Finding the Fourth Proportional to 31,071.13, 46,580.91 and 12,339.61

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Solution

The fourth proportional to 31,071.13, 46,580.91 and 12,339.61 is: 18,499.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,071.13 : 46,580.91 = 12,339.61 : x
  2. Step 2: Convert to fraction form
    31,071.13/46,580.91 = 12,339.61/x
  3. Step 3: Cross multiply
    31,071.13x = 46,580.91 × 12,339.61
  4. Step 4: Simplify right side
    31,071.13x = 574,790,262.85
  5. Step 5: Solve for x
    x = 574,790,262.85/31,071.13
  6. Step 6: Final answer
    x = 18,499.17

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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.