Home / 20,344.50-28,074.06-11,269.80

Finding the Fourth Proportional to 20,344.50, 28,074.06 and 11,269.80

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Solution

The fourth proportional to 20,344.50, 28,074.06 and 11,269.80 is: 15,551.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,344.50 : 28,074.06 = 11,269.80 : x
  2. Step 2: Convert to fraction form
    20,344.50/28,074.06 = 11,269.80/x
  3. Step 3: Cross multiply
    20,344.50x = 28,074.06 × 11,269.80
  4. Step 4: Simplify right side
    20,344.50x = 316,389,041.39
  5. Step 5: Solve for x
    x = 316,389,041.39/20,344.50
  6. Step 6: Final answer
    x = 15,551.58

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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.