Home / 31,845.09-47,780.60-14,323.17

Finding the Fourth Proportional to 31,845.09, 47,780.60 and 14,323.17

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Solution

The fourth proportional to 31,845.09, 47,780.60 and 14,323.17 is: 21,490.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,845.09 : 47,780.60 = 14,323.17 : x
  2. Step 2: Convert to fraction form
    31,845.09/47,780.60 = 14,323.17/x
  3. Step 3: Cross multiply
    31,845.09x = 47,780.60 × 14,323.17
  4. Step 4: Simplify right side
    31,845.09x = 684,369,584.89
  5. Step 5: Solve for x
    x = 684,369,584.89/31,845.09
  6. Step 6: Final answer
    x = 21,490.58

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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.