Home / 39,835.67-59,790.43-20,128.08

Finding the Fourth Proportional to 39,835.67, 59,790.43 and 20,128.08

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Solution

The fourth proportional to 39,835.67, 59,790.43 and 20,128.08 is: 30,210.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,835.67 : 59,790.43 = 20,128.08 : x
  2. Step 2: Convert to fraction form
    39,835.67/59,790.43 = 20,128.08/x
  3. Step 3: Cross multiply
    39,835.67x = 59,790.43 × 20,128.08
  4. Step 4: Simplify right side
    39,835.67x = 1,203,466,558.27
  5. Step 5: Solve for x
    x = 1,203,466,558.27/39,835.67
  6. Step 6: Final answer
    x = 30,210.78

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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.