Home / 31,318.19-46,914.64-18,831.34

Finding the Fourth Proportional to 31,318.19, 46,914.64 and 18,831.34

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Solution

The fourth proportional to 31,318.19, 46,914.64 and 18,831.34 is: 28,209.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,318.19 : 46,914.64 = 18,831.34 : x
  2. Step 2: Convert to fraction form
    31,318.19/46,914.64 = 18,831.34/x
  3. Step 3: Cross multiply
    31,318.19x = 46,914.64 × 18,831.34
  4. Step 4: Simplify right side
    31,318.19x = 883,465,390.41
  5. Step 5: Solve for x
    x = 883,465,390.41/31,318.19
  6. Step 6: Final answer
    x = 28,209.33

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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.