Home / 30,781.43-46,166.38-19,166.39

Finding the Fourth Proportional to 30,781.43, 46,166.38 and 19,166.39

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Solution

The fourth proportional to 30,781.43, 46,166.38 and 19,166.39 is: 28,746.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,781.43 : 46,166.38 = 19,166.39 : x
  2. Step 2: Convert to fraction form
    30,781.43/46,166.38 = 19,166.39/x
  3. Step 3: Cross multiply
    30,781.43x = 46,166.38 × 19,166.39
  4. Step 4: Simplify right side
    30,781.43x = 884,842,843.97
  5. Step 5: Solve for x
    x = 884,842,843.97/30,781.43
  6. Step 6: Final answer
    x = 28,746.00

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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.