Home / 30,889.62-42,627.87-16,742.43

Finding the Fourth Proportional to 30,889.62, 42,627.87 and 16,742.43

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Solution

The fourth proportional to 30,889.62, 42,627.87 and 16,742.43 is: 23,104.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,889.62 : 42,627.87 = 16,742.43 : x
  2. Step 2: Convert to fraction form
    30,889.62/42,627.87 = 16,742.43/x
  3. Step 3: Cross multiply
    30,889.62x = 42,627.87 × 16,742.43
  4. Step 4: Simplify right side
    30,889.62x = 713,694,129.52
  5. Step 5: Solve for x
    x = 713,694,129.52/30,889.62
  6. Step 6: Final answer
    x = 23,104.66

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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.