Home / 39,863.16-59,831.60-20,155.46

Finding the Fourth Proportional to 39,863.16, 59,831.60 and 20,155.46

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Solution

The fourth proportional to 39,863.16, 59,831.60 and 20,155.46 is: 30,251.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,863.16 : 59,831.60 = 20,155.46 : x
  2. Step 2: Convert to fraction form
    39,863.16/59,831.60 = 20,155.46/x
  3. Step 3: Cross multiply
    39,863.16x = 59,831.60 × 20,155.46
  4. Step 4: Simplify right side
    39,863.16x = 1,205,933,020.60
  5. Step 5: Solve for x
    x = 1,205,933,020.60/39,863.16
  6. Step 6: Final answer
    x = 30,251.82

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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.