Home / 20,239.77-30,362.19-10,866.90

Finding the Fourth Proportional to 20,239.77, 30,362.19 and 10,866.90

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Solution

The fourth proportional to 20,239.77, 30,362.19 and 10,866.90 is: 16,301.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,239.77 : 30,362.19 = 10,866.90 : x
  2. Step 2: Convert to fraction form
    20,239.77/30,362.19 = 10,866.90/x
  3. Step 3: Cross multiply
    20,239.77x = 30,362.19 × 10,866.90
  4. Step 4: Simplify right side
    20,239.77x = 329,942,882.51
  5. Step 5: Solve for x
    x = 329,942,882.51/20,239.77
  6. Step 6: Final answer
    x = 16,301.71

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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.