Home / 31,152.30-46,743.04-13,619.86

Finding the Fourth Proportional to 31,152.30, 46,743.04 and 13,619.86

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Solution

The fourth proportional to 31,152.30, 46,743.04 and 13,619.86 is: 20,436.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,152.30 : 46,743.04 = 13,619.86 : x
  2. Step 2: Convert to fraction form
    31,152.30/46,743.04 = 13,619.86/x
  3. Step 3: Cross multiply
    31,152.30x = 46,743.04 × 13,619.86
  4. Step 4: Simplify right side
    31,152.30x = 636,633,660.77
  5. Step 5: Solve for x
    x = 636,633,660.77/31,152.30
  6. Step 6: Final answer
    x = 20,436.17

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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.