Home / 28,863.39-43,296.60-9,140.45

Finding the Fourth Proportional to 28,863.39, 43,296.60 and 9,140.45

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Solution

The fourth proportional to 28,863.39, 43,296.60 and 9,140.45 is: 13,711.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,863.39 : 43,296.60 = 9,140.45 : x
  2. Step 2: Convert to fraction form
    28,863.39/43,296.60 = 9,140.45/x
  3. Step 3: Cross multiply
    28,863.39x = 43,296.60 × 9,140.45
  4. Step 4: Simplify right side
    28,863.39x = 395,750,190.99
  5. Step 5: Solve for x
    x = 395,750,190.99/28,863.39
  6. Step 6: Final answer
    x = 13,711.15

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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.