Home / 28,862.94-39,831.66-16,288.50

Finding the Fourth Proportional to 28,862.94, 39,831.66 and 16,288.50

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Solution

The fourth proportional to 28,862.94, 39,831.66 and 16,288.50 is: 22,478.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,862.94 : 39,831.66 = 16,288.50 : x
  2. Step 2: Convert to fraction form
    28,862.94/39,831.66 = 16,288.50/x
  3. Step 3: Cross multiply
    28,862.94x = 39,831.66 × 16,288.50
  4. Step 4: Simplify right side
    28,862.94x = 648,797,993.91
  5. Step 5: Solve for x
    x = 648,797,993.91/28,862.94
  6. Step 6: Final answer
    x = 22,478.58

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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.