Home / 20,087.40-30,131.10-14,838.60

Finding the Fourth Proportional to 20,087.40, 30,131.10 and 14,838.60

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Solution

The fourth proportional to 20,087.40, 30,131.10 and 14,838.60 is: 22,257.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,087.40 : 30,131.10 = 14,838.60 : x
  2. Step 2: Convert to fraction form
    20,087.40/30,131.10 = 14,838.60/x
  3. Step 3: Cross multiply
    20,087.40x = 30,131.10 × 14,838.60
  4. Step 4: Simplify right side
    20,087.40x = 447,103,340.46
  5. Step 5: Solve for x
    x = 447,103,340.46/20,087.40
  6. Step 6: Final answer
    x = 22,257.90

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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.