Home / 20,766.22-31,137.36-14,200.36

Finding the Fourth Proportional to 20,766.22, 31,137.36 and 14,200.36

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Solution

The fourth proportional to 20,766.22, 31,137.36 and 14,200.36 is: 21,292.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,766.22 : 31,137.36 = 14,200.36 : x
  2. Step 2: Convert to fraction form
    20,766.22/31,137.36 = 14,200.36/x
  3. Step 3: Cross multiply
    20,766.22x = 31,137.36 × 14,200.36
  4. Step 4: Simplify right side
    20,766.22x = 442,161,721.45
  5. Step 5: Solve for x
    x = 442,161,721.45/20,766.22
  6. Step 6: Final answer
    x = 21,292.35

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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.