Home / 20,569.80-30,831.37-9,453.52

Finding the Fourth Proportional to 20,569.80, 30,831.37 and 9,453.52

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Solution

The fourth proportional to 20,569.80, 30,831.37 and 9,453.52 is: 14,169.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,569.80 : 30,831.37 = 9,453.52 : x
  2. Step 2: Convert to fraction form
    20,569.80/30,831.37 = 9,453.52/x
  3. Step 3: Cross multiply
    20,569.80x = 30,831.37 × 9,453.52
  4. Step 4: Simplify right side
    20,569.80x = 291,464,867.58
  5. Step 5: Solve for x
    x = 291,464,867.58/20,569.80
  6. Step 6: Final answer
    x = 14,169.55

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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.