Home / 33,280.39-45,925.73-18,172.78

Finding the Fourth Proportional to 33,280.39, 45,925.73 and 18,172.78

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Solution

The fourth proportional to 33,280.39, 45,925.73 and 18,172.78 is: 25,077.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,280.39 : 45,925.73 = 18,172.78 : x
  2. Step 2: Convert to fraction form
    33,280.39/45,925.73 = 18,172.78/x
  3. Step 3: Cross multiply
    33,280.39x = 45,925.73 × 18,172.78
  4. Step 4: Simplify right side
    33,280.39x = 834,598,187.63
  5. Step 5: Solve for x
    x = 834,598,187.63/33,280.39
  6. Step 6: Final answer
    x = 25,077.78

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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.