Home / 29,550.78-40,781.64-16,976.34

Finding the Fourth Proportional to 29,550.78, 40,781.64 and 16,976.34

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Solution

The fourth proportional to 29,550.78, 40,781.64 and 16,976.34 is: 23,428.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,550.78 : 40,781.64 = 16,976.34 : x
  2. Step 2: Convert to fraction form
    29,550.78/40,781.64 = 16,976.34/x
  3. Step 3: Cross multiply
    29,550.78x = 40,781.64 × 16,976.34
  4. Step 4: Simplify right side
    29,550.78x = 692,322,986.40
  5. Step 5: Solve for x
    x = 692,322,986.40/29,550.78
  6. Step 6: Final answer
    x = 23,428.25

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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.