Home / 39,835.73-59,790.56-20,128.13

Finding the Fourth Proportional to 39,835.73, 59,790.56 and 20,128.13

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Solution

The fourth proportional to 39,835.73, 59,790.56 and 20,128.13 is: 30,210.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,835.73 : 59,790.56 = 20,128.13 : x
  2. Step 2: Convert to fraction form
    39,835.73/59,790.56 = 20,128.13/x
  3. Step 3: Cross multiply
    39,835.73x = 59,790.56 × 20,128.13
  4. Step 4: Simplify right side
    39,835.73x = 1,203,471,989.07
  5. Step 5: Solve for x
    x = 1,203,471,989.07/39,835.73
  6. Step 6: Final answer
    x = 30,210.87

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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.