Home / 33,118.74-45,702-18,972.49

Finding the Fourth Proportional to 33,118.74, 45,702 and 18,972.49

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Solution

The fourth proportional to 33,118.74, 45,702 and 18,972.49 is: 26,180.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,118.74 : 45,702 = 18,972.49 : x
  2. Step 2: Convert to fraction form
    33,118.74/45,702 = 18,972.49/x
  3. Step 3: Cross multiply
    33,118.74x = 45,702 × 18,972.49
  4. Step 4: Simplify right side
    33,118.74x = 867,080,737.98
  5. Step 5: Solve for x
    x = 867,080,737.98/33,118.74
  6. Step 6: Final answer
    x = 26,180.97

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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.