Home / 20,629.12-30,952.32-14,831.68

Finding the Fourth Proportional to 20,629.12, 30,952.32 and 14,831.68

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Solution

The fourth proportional to 20,629.12, 30,952.32 and 14,831.68 is: 22,253.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,629.12 : 30,952.32 = 14,831.68 : x
  2. Step 2: Convert to fraction form
    20,629.12/30,952.32 = 14,831.68/x
  3. Step 3: Cross multiply
    20,629.12x = 30,952.32 × 14,831.68
  4. Step 4: Simplify right side
    20,629.12x = 459,074,905.50
  5. Step 5: Solve for x
    x = 459,074,905.50/20,629.12
  6. Step 6: Final answer
    x = 22,253.73

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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.