Home / 30,285.90-41,792.31-16,856.82

Finding the Fourth Proportional to 30,285.90, 41,792.31 and 16,856.82

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Solution

The fourth proportional to 30,285.90, 41,792.31 and 16,856.82 is: 23,261.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,285.90 : 41,792.31 = 16,856.82 : x
  2. Step 2: Convert to fraction form
    30,285.90/41,792.31 = 16,856.82/x
  3. Step 3: Cross multiply
    30,285.90x = 41,792.31 × 16,856.82
  4. Step 4: Simplify right side
    30,285.90x = 704,485,447.05
  5. Step 5: Solve for x
    x = 704,485,447.05/30,285.90
  6. Step 6: Final answer
    x = 23,261.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.