Home / 20,045.70-30,204-16,612.11

Finding the Fourth Proportional to 20,045.70, 30,204 and 16,612.11

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Solution

The fourth proportional to 20,045.70, 30,204 and 16,612.11 is: 25,030.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,045.70 : 30,204 = 16,612.11 : x
  2. Step 2: Convert to fraction form
    20,045.70/30,204 = 16,612.11/x
  3. Step 3: Cross multiply
    20,045.70x = 30,204 × 16,612.11
  4. Step 4: Simplify right side
    20,045.70x = 501,752,170.44
  5. Step 5: Solve for x
    x = 501,752,170.44/20,045.70
  6. Step 6: Final answer
    x = 25,030.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.