Home / 28,859.05-43,286.39-10,139.25

Finding the Fourth Proportional to 28,859.05, 43,286.39 and 10,139.25

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Solution

The fourth proportional to 28,859.05, 43,286.39 and 10,139.25 is: 15,208.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,859.05 : 43,286.39 = 10,139.25 : x
  2. Step 2: Convert to fraction form
    28,859.05/43,286.39 = 10,139.25/x
  3. Step 3: Cross multiply
    28,859.05x = 43,286.39 × 10,139.25
  4. Step 4: Simplify right side
    28,859.05x = 438,891,529.81
  5. Step 5: Solve for x
    x = 438,891,529.81/28,859.05
  6. Step 6: Final answer
    x = 15,208.11

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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.