Home / 19,630.80-27,124.20-16,131.60

Finding the Fourth Proportional to 19,630.80, 27,124.20 and 16,131.60

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Solution

The fourth proportional to 19,630.80, 27,124.20 and 16,131.60 is: 22,289.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,630.80 : 27,124.20 = 16,131.60 : x
  2. Step 2: Convert to fraction form
    19,630.80/27,124.20 = 16,131.60/x
  3. Step 3: Cross multiply
    19,630.80x = 27,124.20 × 16,131.60
  4. Step 4: Simplify right side
    19,630.80x = 437,556,744.72
  5. Step 5: Solve for x
    x = 437,556,744.72/19,630.80
  6. Step 6: Final answer
    x = 22,289.30

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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.