Home / 39,399.24-59,120.94-20,930.76

Finding the Fourth Proportional to 39,399.24, 59,120.94 and 20,930.76

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Solution

The fourth proportional to 39,399.24, 59,120.94 and 20,930.76 is: 31,407.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,399.24 : 59,120.94 = 20,930.76 : x
  2. Step 2: Convert to fraction form
    39,399.24/59,120.94 = 20,930.76/x
  3. Step 3: Cross multiply
    39,399.24x = 59,120.94 × 20,930.76
  4. Step 4: Simplify right side
    39,399.24x = 1,237,446,206.11
  5. Step 5: Solve for x
    x = 1,237,446,206.11/39,399.24
  6. Step 6: Final answer
    x = 31,407.87

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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.