Home / 28,764.36-39,705.64-16,831.53

Finding the Fourth Proportional to 28,764.36, 39,705.64 and 16,831.53

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Solution

The fourth proportional to 28,764.36, 39,705.64 and 16,831.53 is: 23,233.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,764.36 : 39,705.64 = 16,831.53 : x
  2. Step 2: Convert to fraction form
    28,764.36/39,705.64 = 16,831.53/x
  3. Step 3: Cross multiply
    28,764.36x = 39,705.64 × 16,831.53
  4. Step 4: Simplify right side
    28,764.36x = 668,306,628.75
  5. Step 5: Solve for x
    x = 668,306,628.75/28,764.36
  6. Step 6: Final answer
    x = 23,233.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.