Home / 31,085.10-46,706.65-19,845.90

Finding the Fourth Proportional to 31,085.10, 46,706.65 and 19,845.90

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Solution

The fourth proportional to 31,085.10, 46,706.65 and 19,845.90 is: 29,819.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,085.10 : 46,706.65 = 19,845.90 : x
  2. Step 2: Convert to fraction form
    31,085.10/46,706.65 = 19,845.90/x
  3. Step 3: Cross multiply
    31,085.10x = 46,706.65 × 19,845.90
  4. Step 4: Simplify right side
    31,085.10x = 926,935,455.62
  5. Step 5: Solve for x
    x = 926,935,455.62/31,085.10
  6. Step 6: Final answer
    x = 29,819.28

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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.