Home / 18,820.89-25,907.64-16,267.49

Finding the Fourth Proportional to 18,820.89, 25,907.64 and 16,267.49

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Solution

The fourth proportional to 18,820.89, 25,907.64 and 16,267.49 is: 22,392.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,820.89 : 25,907.64 = 16,267.49 : x
  2. Step 2: Convert to fraction form
    18,820.89/25,907.64 = 16,267.49/x
  3. Step 3: Cross multiply
    18,820.89x = 25,907.64 × 16,267.49
  4. Step 4: Simplify right side
    18,820.89x = 421,452,274.62
  5. Step 5: Solve for x
    x = 421,452,274.62/18,820.89
  6. Step 6: Final answer
    x = 22,392.79

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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.