Home / 20,569.97-30,831.62-9,453.69

Finding the Fourth Proportional to 20,569.97, 30,831.62 and 9,453.69

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Solution

The fourth proportional to 20,569.97, 30,831.62 and 9,453.69 is: 14,169.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,569.97 : 30,831.62 = 9,453.69 : x
  2. Step 2: Convert to fraction form
    20,569.97/30,831.62 = 9,453.69/x
  3. Step 3: Cross multiply
    20,569.97x = 30,831.62 × 9,453.69
  4. Step 4: Simplify right side
    20,569.97x = 291,472,530.41
  5. Step 5: Solve for x
    x = 291,472,530.41/20,569.97
  6. Step 6: Final answer
    x = 14,169.81

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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.