Home / 28,382.72-39,206.40-25,733.12

Finding the Fourth Proportional to 28,382.72, 39,206.40 and 25,733.12

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Solution

The fourth proportional to 28,382.72, 39,206.40 and 25,733.12 is: 35,546.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,382.72 : 39,206.40 = 25,733.12 : x
  2. Step 2: Convert to fraction form
    28,382.72/39,206.40 = 25,733.12/x
  3. Step 3: Cross multiply
    28,382.72x = 39,206.40 × 25,733.12
  4. Step 4: Simplify right side
    28,382.72x = 1,008,902,995.97
  5. Step 5: Solve for x
    x = 1,008,902,995.97/28,382.72
  6. Step 6: Final answer
    x = 35,546.38

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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.