Home / 28,837.38-43,226.37-20,920.17

Finding the Fourth Proportional to 28,837.38, 43,226.37 and 20,920.17

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Solution

The fourth proportional to 28,837.38, 43,226.37 and 20,920.17 is: 31,358.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,837.38 : 43,226.37 = 20,920.17 : x
  2. Step 2: Convert to fraction form
    28,837.38/43,226.37 = 20,920.17/x
  3. Step 3: Cross multiply
    28,837.38x = 43,226.37 × 20,920.17
  4. Step 4: Simplify right side
    28,837.38x = 904,303,008.88
  5. Step 5: Solve for x
    x = 904,303,008.88/28,837.38
  6. Step 6: Final answer
    x = 31,358.71

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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.