Home / 19,636.40-29,422.20-16,331.60

Finding the Fourth Proportional to 19,636.40, 29,422.20 and 16,331.60

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Solution

The fourth proportional to 19,636.40, 29,422.20 and 16,331.60 is: 24,470.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,636.40 : 29,422.20 = 16,331.60 : x
  2. Step 2: Convert to fraction form
    19,636.40/29,422.20 = 16,331.60/x
  3. Step 3: Cross multiply
    19,636.40x = 29,422.20 × 16,331.60
  4. Step 4: Simplify right side
    19,636.40x = 480,511,601.52
  5. Step 5: Solve for x
    x = 480,511,601.52/19,636.40
  6. Step 6: Final answer
    x = 24,470.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.